mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
4532 lines
152 KiB
JavaScript
4532 lines
152 KiB
JavaScript
/*
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html2canvas 0.5.0-alpha2 <http://html2canvas.hertzen.com>
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Copyright (c) 2015 Niklas von Hertzen
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Released under MIT License
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*/
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!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.html2canvas=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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(function (process,global){
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/*!
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||
* @overview es6-promise - a tiny implementation of Promises/A+.
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||
* @copyright Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors (Conversion to ES6 API by Jake Archibald)
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* @license Licensed under MIT license
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||
* See https://raw.githubusercontent.com/jakearchibald/es6-promise/master/LICENSE
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||
* @version 2.0.1
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*/
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(function() {
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"use strict";
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||
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||
function $$utils$$objectOrFunction(x) {
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||
return typeof x === 'function' || (typeof x === 'object' && x !== null);
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||
}
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||
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||
function $$utils$$isFunction(x) {
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||
return typeof x === 'function';
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||
}
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||
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||
function $$utils$$isMaybeThenable(x) {
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||
return typeof x === 'object' && x !== null;
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||
}
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||
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var $$utils$$_isArray;
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||
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||
if (!Array.isArray) {
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||
$$utils$$_isArray = function (x) {
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||
return Object.prototype.toString.call(x) === '[object Array]';
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||
};
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||
} else {
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||
$$utils$$_isArray = Array.isArray;
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||
}
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||
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||
var $$utils$$isArray = $$utils$$_isArray;
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||
var $$utils$$now = Date.now || function() { return new Date().getTime(); };
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||
function $$utils$$F() { }
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||
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||
var $$utils$$o_create = (Object.create || function (o) {
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||
if (arguments.length > 1) {
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||
throw new Error('Second argument not supported');
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||
}
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||
if (typeof o !== 'object') {
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||
throw new TypeError('Argument must be an object');
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||
}
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$$utils$$F.prototype = o;
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||
return new $$utils$$F();
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||
});
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||
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||
var $$asap$$len = 0;
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||
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||
var $$asap$$default = function asap(callback, arg) {
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$$asap$$queue[$$asap$$len] = callback;
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$$asap$$queue[$$asap$$len + 1] = arg;
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||
$$asap$$len += 2;
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||
if ($$asap$$len === 2) {
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||
// If len is 1, that means that we need to schedule an async flush.
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||
// If additional callbacks are queued before the queue is flushed, they
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||
// will be processed by this flush that we are scheduling.
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$$asap$$scheduleFlush();
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||
}
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||
};
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||
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var $$asap$$browserGlobal = (typeof window !== 'undefined') ? window : {};
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||
var $$asap$$BrowserMutationObserver = $$asap$$browserGlobal.MutationObserver || $$asap$$browserGlobal.WebKitMutationObserver;
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||
|
||
// test for web worker but not in IE10
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||
var $$asap$$isWorker = typeof Uint8ClampedArray !== 'undefined' &&
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||
typeof importScripts !== 'undefined' &&
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||
typeof MessageChannel !== 'undefined';
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||
|
||
// node
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||
function $$asap$$useNextTick() {
|
||
return function() {
|
||
process.nextTick($$asap$$flush);
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||
};
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||
}
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||
|
||
function $$asap$$useMutationObserver() {
|
||
var iterations = 0;
|
||
var observer = new $$asap$$BrowserMutationObserver($$asap$$flush);
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||
var node = document.createTextNode('');
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||
observer.observe(node, { characterData: true });
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||
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||
return function() {
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||
node.data = (iterations = ++iterations % 2);
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||
};
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||
}
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||
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// web worker
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function $$asap$$useMessageChannel() {
|
||
var channel = new MessageChannel();
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||
channel.port1.onmessage = $$asap$$flush;
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||
return function () {
|
||
channel.port2.postMessage(0);
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||
};
|
||
}
|
||
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||
function $$asap$$useSetTimeout() {
|
||
return function() {
|
||
setTimeout($$asap$$flush, 1);
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||
};
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||
}
|
||
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||
var $$asap$$queue = new Array(1000);
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||
|
||
function $$asap$$flush() {
|
||
for (var i = 0; i < $$asap$$len; i+=2) {
|
||
var callback = $$asap$$queue[i];
|
||
var arg = $$asap$$queue[i+1];
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||
|
||
callback(arg);
|
||
|
||
$$asap$$queue[i] = undefined;
|
||
$$asap$$queue[i+1] = undefined;
|
||
}
|
||
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||
$$asap$$len = 0;
|
||
}
|
||
|
||
var $$asap$$scheduleFlush;
|
||
|
||
// Decide what async method to use to triggering processing of queued callbacks:
|
||
if (typeof process !== 'undefined' && {}.toString.call(process) === '[object process]') {
|
||
$$asap$$scheduleFlush = $$asap$$useNextTick();
|
||
} else if ($$asap$$BrowserMutationObserver) {
|
||
$$asap$$scheduleFlush = $$asap$$useMutationObserver();
|
||
} else if ($$asap$$isWorker) {
|
||
$$asap$$scheduleFlush = $$asap$$useMessageChannel();
|
||
} else {
|
||
$$asap$$scheduleFlush = $$asap$$useSetTimeout();
|
||
}
|
||
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||
function $$$internal$$noop() {}
|
||
var $$$internal$$PENDING = void 0;
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||
var $$$internal$$FULFILLED = 1;
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||
var $$$internal$$REJECTED = 2;
|
||
var $$$internal$$GET_THEN_ERROR = new $$$internal$$ErrorObject();
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||
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||
function $$$internal$$selfFullfillment() {
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||
return new TypeError("You cannot resolve a promise with itself");
|
||
}
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||
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||
function $$$internal$$cannotReturnOwn() {
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||
return new TypeError('A promises callback cannot return that same promise.')
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||
}
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||
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||
function $$$internal$$getThen(promise) {
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||
try {
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||
return promise.then;
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||
} catch(error) {
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||
$$$internal$$GET_THEN_ERROR.error = error;
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||
return $$$internal$$GET_THEN_ERROR;
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||
}
|
||
}
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||
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||
function $$$internal$$tryThen(then, value, fulfillmentHandler, rejectionHandler) {
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||
try {
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||
then.call(value, fulfillmentHandler, rejectionHandler);
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||
} catch(e) {
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||
return e;
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||
}
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||
}
|
||
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||
function $$$internal$$handleForeignThenable(promise, thenable, then) {
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||
$$asap$$default(function(promise) {
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||
var sealed = false;
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||
var error = $$$internal$$tryThen(then, thenable, function(value) {
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||
if (sealed) { return; }
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||
sealed = true;
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||
if (thenable !== value) {
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||
$$$internal$$resolve(promise, value);
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||
} else {
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||
$$$internal$$fulfill(promise, value);
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||
}
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||
}, function(reason) {
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||
if (sealed) { return; }
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||
sealed = true;
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||
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||
$$$internal$$reject(promise, reason);
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||
}, 'Settle: ' + (promise._label || ' unknown promise'));
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||
|
||
if (!sealed && error) {
|
||
sealed = true;
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||
$$$internal$$reject(promise, error);
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||
}
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||
}, promise);
|
||
}
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||
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||
function $$$internal$$handleOwnThenable(promise, thenable) {
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||
if (thenable._state === $$$internal$$FULFILLED) {
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||
$$$internal$$fulfill(promise, thenable._result);
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||
} else if (promise._state === $$$internal$$REJECTED) {
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||
$$$internal$$reject(promise, thenable._result);
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||
} else {
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||
$$$internal$$subscribe(thenable, undefined, function(value) {
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$$$internal$$resolve(promise, value);
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||
}, function(reason) {
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||
$$$internal$$reject(promise, reason);
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||
});
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||
}
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||
}
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||
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||
function $$$internal$$handleMaybeThenable(promise, maybeThenable) {
|
||
if (maybeThenable.constructor === promise.constructor) {
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||
$$$internal$$handleOwnThenable(promise, maybeThenable);
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||
} else {
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||
var then = $$$internal$$getThen(maybeThenable);
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||
|
||
if (then === $$$internal$$GET_THEN_ERROR) {
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||
$$$internal$$reject(promise, $$$internal$$GET_THEN_ERROR.error);
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||
} else if (then === undefined) {
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||
$$$internal$$fulfill(promise, maybeThenable);
|
||
} else if ($$utils$$isFunction(then)) {
|
||
$$$internal$$handleForeignThenable(promise, maybeThenable, then);
|
||
} else {
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||
$$$internal$$fulfill(promise, maybeThenable);
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||
}
|
||
}
|
||
}
|
||
|
||
function $$$internal$$resolve(promise, value) {
|
||
if (promise === value) {
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||
$$$internal$$reject(promise, $$$internal$$selfFullfillment());
|
||
} else if ($$utils$$objectOrFunction(value)) {
|
||
$$$internal$$handleMaybeThenable(promise, value);
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||
} else {
|
||
$$$internal$$fulfill(promise, value);
|
||
}
|
||
}
|
||
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||
function $$$internal$$publishRejection(promise) {
|
||
if (promise._onerror) {
|
||
promise._onerror(promise._result);
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||
}
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||
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||
$$$internal$$publish(promise);
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||
}
|
||
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||
function $$$internal$$fulfill(promise, value) {
|
||
if (promise._state !== $$$internal$$PENDING) { return; }
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||
|
||
promise._result = value;
|
||
promise._state = $$$internal$$FULFILLED;
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||
|
||
if (promise._subscribers.length === 0) {
|
||
} else {
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||
$$asap$$default($$$internal$$publish, promise);
|
||
}
|
||
}
|
||
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||
function $$$internal$$reject(promise, reason) {
|
||
if (promise._state !== $$$internal$$PENDING) { return; }
|
||
promise._state = $$$internal$$REJECTED;
|
||
promise._result = reason;
|
||
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||
$$asap$$default($$$internal$$publishRejection, promise);
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||
}
|
||
|
||
function $$$internal$$subscribe(parent, child, onFulfillment, onRejection) {
|
||
var subscribers = parent._subscribers;
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||
var length = subscribers.length;
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||
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||
parent._onerror = null;
|
||
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||
subscribers[length] = child;
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||
subscribers[length + $$$internal$$FULFILLED] = onFulfillment;
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||
subscribers[length + $$$internal$$REJECTED] = onRejection;
|
||
|
||
if (length === 0 && parent._state) {
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||
$$asap$$default($$$internal$$publish, parent);
|
||
}
|
||
}
|
||
|
||
function $$$internal$$publish(promise) {
|
||
var subscribers = promise._subscribers;
|
||
var settled = promise._state;
|
||
|
||
if (subscribers.length === 0) { return; }
|
||
|
||
var child, callback, detail = promise._result;
|
||
|
||
for (var i = 0; i < subscribers.length; i += 3) {
|
||
child = subscribers[i];
|
||
callback = subscribers[i + settled];
|
||
|
||
if (child) {
|
||
$$$internal$$invokeCallback(settled, child, callback, detail);
|
||
} else {
|
||
callback(detail);
|
||
}
|
||
}
|
||
|
||
promise._subscribers.length = 0;
|
||
}
|
||
|
||
function $$$internal$$ErrorObject() {
|
||
this.error = null;
|
||
}
|
||
|
||
var $$$internal$$TRY_CATCH_ERROR = new $$$internal$$ErrorObject();
|
||
|
||
function $$$internal$$tryCatch(callback, detail) {
|
||
try {
|
||
return callback(detail);
|
||
} catch(e) {
|
||
$$$internal$$TRY_CATCH_ERROR.error = e;
|
||
return $$$internal$$TRY_CATCH_ERROR;
|
||
}
|
||
}
|
||
|
||
function $$$internal$$invokeCallback(settled, promise, callback, detail) {
|
||
var hasCallback = $$utils$$isFunction(callback),
|
||
value, error, succeeded, failed;
|
||
|
||
if (hasCallback) {
|
||
value = $$$internal$$tryCatch(callback, detail);
|
||
|
||
if (value === $$$internal$$TRY_CATCH_ERROR) {
|
||
failed = true;
|
||
error = value.error;
|
||
value = null;
|
||
} else {
|
||
succeeded = true;
|
||
}
|
||
|
||
if (promise === value) {
|
||
$$$internal$$reject(promise, $$$internal$$cannotReturnOwn());
|
||
return;
|
||
}
|
||
|
||
} else {
|
||
value = detail;
|
||
succeeded = true;
|
||
}
|
||
|
||
if (promise._state !== $$$internal$$PENDING) {
|
||
// noop
|
||
} else if (hasCallback && succeeded) {
|
||
$$$internal$$resolve(promise, value);
|
||
} else if (failed) {
|
||
$$$internal$$reject(promise, error);
|
||
} else if (settled === $$$internal$$FULFILLED) {
|
||
$$$internal$$fulfill(promise, value);
|
||
} else if (settled === $$$internal$$REJECTED) {
|
||
$$$internal$$reject(promise, value);
|
||
}
|
||
}
|
||
|
||
function $$$internal$$initializePromise(promise, resolver) {
|
||
try {
|
||
resolver(function resolvePromise(value){
|
||
$$$internal$$resolve(promise, value);
|
||
}, function rejectPromise(reason) {
|
||
$$$internal$$reject(promise, reason);
|
||
});
|
||
} catch(e) {
|
||
$$$internal$$reject(promise, e);
|
||
}
|
||
}
|
||
|
||
function $$$enumerator$$makeSettledResult(state, position, value) {
|
||
if (state === $$$internal$$FULFILLED) {
|
||
return {
|
||
state: 'fulfilled',
|
||
value: value
|
||
};
|
||
} else {
|
||
return {
|
||
state: 'rejected',
|
||
reason: value
|
||
};
|
||
}
|
||
}
|
||
|
||
function $$$enumerator$$Enumerator(Constructor, input, abortOnReject, label) {
|
||
this._instanceConstructor = Constructor;
|
||
this.promise = new Constructor($$$internal$$noop, label);
|
||
this._abortOnReject = abortOnReject;
|
||
|
||
if (this._validateInput(input)) {
|
||
this._input = input;
|
||
this.length = input.length;
|
||
this._remaining = input.length;
|
||
|
||
this._init();
|
||
|
||
if (this.length === 0) {
|
||
$$$internal$$fulfill(this.promise, this._result);
|
||
} else {
|
||
this.length = this.length || 0;
|
||
this._enumerate();
|
||
if (this._remaining === 0) {
|
||
$$$internal$$fulfill(this.promise, this._result);
|
||
}
|
||
}
|
||
} else {
|
||
$$$internal$$reject(this.promise, this._validationError());
|
||
}
|
||
}
|
||
|
||
$$$enumerator$$Enumerator.prototype._validateInput = function(input) {
|
||
return $$utils$$isArray(input);
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._validationError = function() {
|
||
return new Error('Array Methods must be provided an Array');
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._init = function() {
|
||
this._result = new Array(this.length);
|
||
};
|
||
|
||
var $$$enumerator$$default = $$$enumerator$$Enumerator;
|
||
|
||
$$$enumerator$$Enumerator.prototype._enumerate = function() {
|
||
var length = this.length;
|
||
var promise = this.promise;
|
||
var input = this._input;
|
||
|
||
for (var i = 0; promise._state === $$$internal$$PENDING && i < length; i++) {
|
||
this._eachEntry(input[i], i);
|
||
}
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._eachEntry = function(entry, i) {
|
||
var c = this._instanceConstructor;
|
||
if ($$utils$$isMaybeThenable(entry)) {
|
||
if (entry.constructor === c && entry._state !== $$$internal$$PENDING) {
|
||
entry._onerror = null;
|
||
this._settledAt(entry._state, i, entry._result);
|
||
} else {
|
||
this._willSettleAt(c.resolve(entry), i);
|
||
}
|
||
} else {
|
||
this._remaining--;
|
||
this._result[i] = this._makeResult($$$internal$$FULFILLED, i, entry);
|
||
}
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._settledAt = function(state, i, value) {
|
||
var promise = this.promise;
|
||
|
||
if (promise._state === $$$internal$$PENDING) {
|
||
this._remaining--;
|
||
|
||
if (this._abortOnReject && state === $$$internal$$REJECTED) {
|
||
$$$internal$$reject(promise, value);
|
||
} else {
|
||
this._result[i] = this._makeResult(state, i, value);
|
||
}
|
||
}
|
||
|
||
if (this._remaining === 0) {
|
||
$$$internal$$fulfill(promise, this._result);
|
||
}
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._makeResult = function(state, i, value) {
|
||
return value;
|
||
};
|
||
|
||
$$$enumerator$$Enumerator.prototype._willSettleAt = function(promise, i) {
|
||
var enumerator = this;
|
||
|
||
$$$internal$$subscribe(promise, undefined, function(value) {
|
||
enumerator._settledAt($$$internal$$FULFILLED, i, value);
|
||
}, function(reason) {
|
||
enumerator._settledAt($$$internal$$REJECTED, i, reason);
|
||
});
|
||
};
|
||
|
||
var $$promise$all$$default = function all(entries, label) {
|
||
return new $$$enumerator$$default(this, entries, true /* abort on reject */, label).promise;
|
||
};
|
||
|
||
var $$promise$race$$default = function race(entries, label) {
|
||
/*jshint validthis:true */
|
||
var Constructor = this;
|
||
|
||
var promise = new Constructor($$$internal$$noop, label);
|
||
|
||
if (!$$utils$$isArray(entries)) {
|
||
$$$internal$$reject(promise, new TypeError('You must pass an array to race.'));
|
||
return promise;
|
||
}
|
||
|
||
var length = entries.length;
|
||
|
||
function onFulfillment(value) {
|
||
$$$internal$$resolve(promise, value);
|
||
}
|
||
|
||
function onRejection(reason) {
|
||
$$$internal$$reject(promise, reason);
|
||
}
|
||
|
||
for (var i = 0; promise._state === $$$internal$$PENDING && i < length; i++) {
|
||
$$$internal$$subscribe(Constructor.resolve(entries[i]), undefined, onFulfillment, onRejection);
|
||
}
|
||
|
||
return promise;
|
||
};
|
||
|
||
var $$promise$resolve$$default = function resolve(object, label) {
|
||
/*jshint validthis:true */
|
||
var Constructor = this;
|
||
|
||
if (object && typeof object === 'object' && object.constructor === Constructor) {
|
||
return object;
|
||
}
|
||
|
||
var promise = new Constructor($$$internal$$noop, label);
|
||
$$$internal$$resolve(promise, object);
|
||
return promise;
|
||
};
|
||
|
||
var $$promise$reject$$default = function reject(reason, label) {
|
||
/*jshint validthis:true */
|
||
var Constructor = this;
|
||
var promise = new Constructor($$$internal$$noop, label);
|
||
$$$internal$$reject(promise, reason);
|
||
return promise;
|
||
};
|
||
|
||
var $$es6$promise$promise$$counter = 0;
|
||
|
||
function $$es6$promise$promise$$needsResolver() {
|
||
throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');
|
||
}
|
||
|
||
function $$es6$promise$promise$$needsNew() {
|
||
throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.");
|
||
}
|
||
|
||
var $$es6$promise$promise$$default = $$es6$promise$promise$$Promise;
|
||
|
||
/**
|
||
Promise objects represent the eventual result of an asynchronous operation. The
|
||
primary way of interacting with a promise is through its `then` method, which
|
||
registers callbacks to receive either a promise’s eventual value or the reason
|
||
why the promise cannot be fulfilled.
|
||
|
||
Terminology
|
||
-----------
|
||
|
||
- `promise` is an object or function with a `then` method whose behavior conforms to this specification.
|
||
- `thenable` is an object or function that defines a `then` method.
|
||
- `value` is any legal JavaScript value (including undefined, a thenable, or a promise).
|
||
- `exception` is a value that is thrown using the throw statement.
|
||
- `reason` is a value that indicates why a promise was rejected.
|
||
- `settled` the final resting state of a promise, fulfilled or rejected.
|
||
|
||
A promise can be in one of three states: pending, fulfilled, or rejected.
|
||
|
||
Promises that are fulfilled have a fulfillment value and are in the fulfilled
|
||
state. Promises that are rejected have a rejection reason and are in the
|
||
rejected state. A fulfillment value is never a thenable.
|
||
|
||
Promises can also be said to *resolve* a value. If this value is also a
|
||
promise, then the original promise's settled state will match the value's
|
||
settled state. So a promise that *resolves* a promise that rejects will
|
||
itself reject, and a promise that *resolves* a promise that fulfills will
|
||
itself fulfill.
|
||
|
||
|
||
Basic Usage:
|
||
------------
|
||
|
||
```js
|
||
var promise = new Promise(function(resolve, reject) {
|
||
// on success
|
||
resolve(value);
|
||
|
||
// on failure
|
||
reject(reason);
|
||
});
|
||
|
||
promise.then(function(value) {
|
||
// on fulfillment
|
||
}, function(reason) {
|
||
// on rejection
|
||
});
|
||
```
|
||
|
||
Advanced Usage:
|
||
---------------
|
||
|
||
Promises shine when abstracting away asynchronous interactions such as
|
||
`XMLHttpRequest`s.
|
||
|
||
```js
|
||
function getJSON(url) {
|
||
return new Promise(function(resolve, reject){
|
||
var xhr = new XMLHttpRequest();
|
||
|
||
xhr.open('GET', url);
|
||
xhr.onreadystatechange = handler;
|
||
xhr.responseType = 'json';
|
||
xhr.setRequestHeader('Accept', 'application/json');
|
||
xhr.send();
|
||
|
||
function handler() {
|
||
if (this.readyState === this.DONE) {
|
||
if (this.status === 200) {
|
||
resolve(this.response);
|
||
} else {
|
||
reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']'));
|
||
}
|
||
}
|
||
};
|
||
});
|
||
}
|
||
|
||
getJSON('/posts.json').then(function(json) {
|
||
// on fulfillment
|
||
}, function(reason) {
|
||
// on rejection
|
||
});
|
||
```
|
||
|
||
Unlike callbacks, promises are great composable primitives.
|
||
|
||
```js
|
||
Promise.all([
|
||
getJSON('/posts'),
|
||
getJSON('/comments')
|
||
]).then(function(values){
|
||
values[0] // => postsJSON
|
||
values[1] // => commentsJSON
|
||
|
||
return values;
|
||
});
|
||
```
|
||
|
||
@class Promise
|
||
@param {function} resolver
|
||
Useful for tooling.
|
||
@constructor
|
||
*/
|
||
function $$es6$promise$promise$$Promise(resolver) {
|
||
this._id = $$es6$promise$promise$$counter++;
|
||
this._state = undefined;
|
||
this._result = undefined;
|
||
this._subscribers = [];
|
||
|
||
if ($$$internal$$noop !== resolver) {
|
||
if (!$$utils$$isFunction(resolver)) {
|
||
$$es6$promise$promise$$needsResolver();
|
||
}
|
||
|
||
if (!(this instanceof $$es6$promise$promise$$Promise)) {
|
||
$$es6$promise$promise$$needsNew();
|
||
}
|
||
|
||
$$$internal$$initializePromise(this, resolver);
|
||
}
|
||
}
|
||
|
||
$$es6$promise$promise$$Promise.all = $$promise$all$$default;
|
||
$$es6$promise$promise$$Promise.race = $$promise$race$$default;
|
||
$$es6$promise$promise$$Promise.resolve = $$promise$resolve$$default;
|
||
$$es6$promise$promise$$Promise.reject = $$promise$reject$$default;
|
||
|
||
$$es6$promise$promise$$Promise.prototype = {
|
||
constructor: $$es6$promise$promise$$Promise,
|
||
|
||
/**
|
||
The primary way of interacting with a promise is through its `then` method,
|
||
which registers callbacks to receive either a promise's eventual value or the
|
||
reason why the promise cannot be fulfilled.
|
||
|
||
```js
|
||
findUser().then(function(user){
|
||
// user is available
|
||
}, function(reason){
|
||
// user is unavailable, and you are given the reason why
|
||
});
|
||
```
|
||
|
||
Chaining
|
||
--------
|
||
|
||
The return value of `then` is itself a promise. This second, 'downstream'
|
||
promise is resolved with the return value of the first promise's fulfillment
|
||
or rejection handler, or rejected if the handler throws an exception.
|
||
|
||
```js
|
||
findUser().then(function (user) {
|
||
return user.name;
|
||
}, function (reason) {
|
||
return 'default name';
|
||
}).then(function (userName) {
|
||
// If `findUser` fulfilled, `userName` will be the user's name, otherwise it
|
||
// will be `'default name'`
|
||
});
|
||
|
||
findUser().then(function (user) {
|
||
throw new Error('Found user, but still unhappy');
|
||
}, function (reason) {
|
||
throw new Error('`findUser` rejected and we're unhappy');
|
||
}).then(function (value) {
|
||
// never reached
|
||
}, function (reason) {
|
||
// if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.
|
||
// If `findUser` rejected, `reason` will be '`findUser` rejected and we're unhappy'.
|
||
});
|
||
```
|
||
If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.
|
||
|
||
```js
|
||
findUser().then(function (user) {
|
||
throw new PedagogicalException('Upstream error');
|
||
}).then(function (value) {
|
||
// never reached
|
||
}).then(function (value) {
|
||
// never reached
|
||
}, function (reason) {
|
||
// The `PedgagocialException` is propagated all the way down to here
|
||
});
|
||
```
|
||
|
||
Assimilation
|
||
------------
|
||
|
||
Sometimes the value you want to propagate to a downstream promise can only be
|
||
retrieved asynchronously. This can be achieved by returning a promise in the
|
||
fulfillment or rejection handler. The downstream promise will then be pending
|
||
until the returned promise is settled. This is called *assimilation*.
|
||
|
||
```js
|
||
findUser().then(function (user) {
|
||
return findCommentsByAuthor(user);
|
||
}).then(function (comments) {
|
||
// The user's comments are now available
|
||
});
|
||
```
|
||
|
||
If the assimliated promise rejects, then the downstream promise will also reject.
|
||
|
||
```js
|
||
findUser().then(function (user) {
|
||
return findCommentsByAuthor(user);
|
||
}).then(function (comments) {
|
||
// If `findCommentsByAuthor` fulfills, we'll have the value here
|
||
}, function (reason) {
|
||
// If `findCommentsByAuthor` rejects, we'll have the reason here
|
||
});
|
||
```
|
||
|
||
Simple Example
|
||
--------------
|
||
|
||
Synchronous Example
|
||
|
||
```javascript
|
||
var result;
|
||
|
||
try {
|
||
result = findResult();
|
||
// success
|
||
} catch(reason) {
|
||
// failure
|
||
}
|
||
```
|
||
|
||
Errback Example
|
||
|
||
```js
|
||
findResult(function(result, err){
|
||
if (err) {
|
||
// failure
|
||
} else {
|
||
// success
|
||
}
|
||
});
|
||
```
|
||
|
||
Promise Example;
|
||
|
||
```javascript
|
||
findResult().then(function(result){
|
||
// success
|
||
}, function(reason){
|
||
// failure
|
||
});
|
||
```
|
||
|
||
Advanced Example
|
||
--------------
|
||
|
||
Synchronous Example
|
||
|
||
```javascript
|
||
var author, books;
|
||
|
||
try {
|
||
author = findAuthor();
|
||
books = findBooksByAuthor(author);
|
||
// success
|
||
} catch(reason) {
|
||
// failure
|
||
}
|
||
```
|
||
|
||
Errback Example
|
||
|
||
```js
|
||
|
||
function foundBooks(books) {
|
||
|
||
}
|
||
|
||
function failure(reason) {
|
||
|
||
}
|
||
|
||
findAuthor(function(author, err){
|
||
if (err) {
|
||
failure(err);
|
||
// failure
|
||
} else {
|
||
try {
|
||
findBoooksByAuthor(author, function(books, err) {
|
||
if (err) {
|
||
failure(err);
|
||
} else {
|
||
try {
|
||
foundBooks(books);
|
||
} catch(reason) {
|
||
failure(reason);
|
||
}
|
||
}
|
||
});
|
||
} catch(error) {
|
||
failure(err);
|
||
}
|
||
// success
|
||
}
|
||
});
|
||
```
|
||
|
||
Promise Example;
|
||
|
||
```javascript
|
||
findAuthor().
|
||
then(findBooksByAuthor).
|
||
then(function(books){
|
||
// found books
|
||
}).catch(function(reason){
|
||
// something went wrong
|
||
});
|
||
```
|
||
|
||
@method then
|
||
@param {Function} onFulfilled
|
||
@param {Function} onRejected
|
||
Useful for tooling.
|
||
@return {Promise}
|
||
*/
|
||
then: function(onFulfillment, onRejection) {
|
||
var parent = this;
|
||
var state = parent._state;
|
||
|
||
if (state === $$$internal$$FULFILLED && !onFulfillment || state === $$$internal$$REJECTED && !onRejection) {
|
||
return this;
|
||
}
|
||
|
||
var child = new this.constructor($$$internal$$noop);
|
||
var result = parent._result;
|
||
|
||
if (state) {
|
||
var callback = arguments[state - 1];
|
||
$$asap$$default(function(){
|
||
$$$internal$$invokeCallback(state, child, callback, result);
|
||
});
|
||
} else {
|
||
$$$internal$$subscribe(parent, child, onFulfillment, onRejection);
|
||
}
|
||
|
||
return child;
|
||
},
|
||
|
||
/**
|
||
`catch` is simply sugar for `then(undefined, onRejection)` which makes it the same
|
||
as the catch block of a try/catch statement.
|
||
|
||
```js
|
||
function findAuthor(){
|
||
throw new Error('couldn't find that author');
|
||
}
|
||
|
||
// synchronous
|
||
try {
|
||
findAuthor();
|
||
} catch(reason) {
|
||
// something went wrong
|
||
}
|
||
|
||
// async with promises
|
||
findAuthor().catch(function(reason){
|
||
// something went wrong
|
||
});
|
||
```
|
||
|
||
@method catch
|
||
@param {Function} onRejection
|
||
Useful for tooling.
|
||
@return {Promise}
|
||
*/
|
||
'catch': function(onRejection) {
|
||
return this.then(null, onRejection);
|
||
}
|
||
};
|
||
|
||
var $$es6$promise$polyfill$$default = function polyfill() {
|
||
var local;
|
||
|
||
if (typeof global !== 'undefined') {
|
||
local = global;
|
||
} else if (typeof window !== 'undefined' && window.document) {
|
||
local = window;
|
||
} else {
|
||
local = self;
|
||
}
|
||
|
||
var es6PromiseSupport =
|
||
"Promise" in local &&
|
||
// Some of these methods are missing from
|
||
// Firefox/Chrome experimental implementations
|
||
"resolve" in local.Promise &&
|
||
"reject" in local.Promise &&
|
||
"all" in local.Promise &&
|
||
"race" in local.Promise &&
|
||
// Older version of the spec had a resolver object
|
||
// as the arg rather than a function
|
||
(function() {
|
||
var resolve;
|
||
new local.Promise(function(r) { resolve = r; });
|
||
return $$utils$$isFunction(resolve);
|
||
}());
|
||
|
||
if (!es6PromiseSupport) {
|
||
local.Promise = $$es6$promise$promise$$default;
|
||
}
|
||
};
|
||
|
||
var es6$promise$umd$$ES6Promise = {
|
||
'Promise': $$es6$promise$promise$$default,
|
||
'polyfill': $$es6$promise$polyfill$$default
|
||
};
|
||
|
||
/* global define:true module:true window: true */
|
||
if (typeof define === 'function' && define['amd']) {
|
||
define(function() { return es6$promise$umd$$ES6Promise; });
|
||
} else if (typeof module !== 'undefined' && module['exports']) {
|
||
module['exports'] = es6$promise$umd$$ES6Promise;
|
||
} else if (typeof this !== 'undefined') {
|
||
this['ES6Promise'] = es6$promise$umd$$ES6Promise;
|
||
}
|
||
}).call(this);
|
||
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
||
},{"_process":2}],2:[function(require,module,exports){
|
||
// shim for using process in browser
|
||
|
||
var process = module.exports = {};
|
||
var queue = [];
|
||
var draining = false;
|
||
|
||
function drainQueue() {
|
||
if (draining) {
|
||
return;
|
||
}
|
||
draining = true;
|
||
var currentQueue;
|
||
var len = queue.length;
|
||
while(len) {
|
||
currentQueue = queue;
|
||
queue = [];
|
||
var i = -1;
|
||
while (++i < len) {
|
||
currentQueue[i]();
|
||
}
|
||
len = queue.length;
|
||
}
|
||
draining = false;
|
||
}
|
||
process.nextTick = function (fun) {
|
||
queue.push(fun);
|
||
if (!draining) {
|
||
setTimeout(drainQueue, 0);
|
||
}
|
||
};
|
||
|
||
process.title = 'browser';
|
||
process.browser = true;
|
||
process.env = {};
|
||
process.argv = [];
|
||
process.version = ''; // empty string to avoid regexp issues
|
||
|
||
function noop() {}
|
||
|
||
process.on = noop;
|
||
process.addListener = noop;
|
||
process.once = noop;
|
||
process.off = noop;
|
||
process.removeListener = noop;
|
||
process.removeAllListeners = noop;
|
||
process.emit = noop;
|
||
|
||
process.binding = function (name) {
|
||
throw new Error('process.binding is not supported');
|
||
};
|
||
|
||
// TODO(shtylman)
|
||
process.cwd = function () { return '/' };
|
||
process.chdir = function (dir) {
|
||
throw new Error('process.chdir is not supported');
|
||
};
|
||
process.umask = function() { return 0; };
|
||
|
||
},{}],3:[function(require,module,exports){
|
||
(function (global){
|
||
/*! http://mths.be/punycode v1.2.4 by @mathias */
|
||
;(function(root) {
|
||
|
||
/** Detect free variables */
|
||
var freeExports = typeof exports == 'object' && exports;
|
||
var freeModule = typeof module == 'object' && module &&
|
||
module.exports == freeExports && module;
|
||
var freeGlobal = typeof global == 'object' && global;
|
||
if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
|
||
root = freeGlobal;
|
||
}
|
||
|
||
/**
|
||
* The `punycode` object.
|
||
* @name punycode
|
||
* @type Object
|
||
*/
|
||
var punycode,
|
||
|
||
/** Highest positive signed 32-bit float value */
|
||
maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1
|
||
|
||
/** Bootstring parameters */
|
||
base = 36,
|
||
tMin = 1,
|
||
tMax = 26,
|
||
skew = 38,
|
||
damp = 700,
|
||
initialBias = 72,
|
||
initialN = 128, // 0x80
|
||
delimiter = '-', // '\x2D'
|
||
|
||
/** Regular expressions */
|
||
regexPunycode = /^xn--/,
|
||
regexNonASCII = /[^ -~]/, // unprintable ASCII chars + non-ASCII chars
|
||
regexSeparators = /\x2E|\u3002|\uFF0E|\uFF61/g, // RFC 3490 separators
|
||
|
||
/** Error messages */
|
||
errors = {
|
||
'overflow': 'Overflow: input needs wider integers to process',
|
||
'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
|
||
'invalid-input': 'Invalid input'
|
||
},
|
||
|
||
/** Convenience shortcuts */
|
||
baseMinusTMin = base - tMin,
|
||
floor = Math.floor,
|
||
stringFromCharCode = String.fromCharCode,
|
||
|
||
/** Temporary variable */
|
||
key;
|
||
|
||
/*--------------------------------------------------------------------------*/
|
||
|
||
/**
|
||
* A generic error utility function.
|
||
* @private
|
||
* @param {String} type The error type.
|
||
* @returns {Error} Throws a `RangeError` with the applicable error message.
|
||
*/
|
||
function error(type) {
|
||
throw RangeError(errors[type]);
|
||
}
|
||
|
||
/**
|
||
* A generic `Array#map` utility function.
|
||
* @private
|
||
* @param {Array} array The array to iterate over.
|
||
* @param {Function} callback The function that gets called for every array
|
||
* item.
|
||
* @returns {Array} A new array of values returned by the callback function.
|
||
*/
|
||
function map(array, fn) {
|
||
var length = array.length;
|
||
while (length--) {
|
||
array[length] = fn(array[length]);
|
||
}
|
||
return array;
|
||
}
|
||
|
||
/**
|
||
* A simple `Array#map`-like wrapper to work with domain name strings.
|
||
* @private
|
||
* @param {String} domain The domain name.
|
||
* @param {Function} callback The function that gets called for every
|
||
* character.
|
||
* @returns {Array} A new string of characters returned by the callback
|
||
* function.
|
||
*/
|
||
function mapDomain(string, fn) {
|
||
return map(string.split(regexSeparators), fn).join('.');
|
||
}
|
||
|
||
/**
|
||
* Creates an array containing the numeric code points of each Unicode
|
||
* character in the string. While JavaScript uses UCS-2 internally,
|
||
* this function will convert a pair of surrogate halves (each of which
|
||
* UCS-2 exposes as separate characters) into a single code point,
|
||
* matching UTF-16.
|
||
* @see `punycode.ucs2.encode`
|
||
* @see <http://mathiasbynens.be/notes/javascript-encoding>
|
||
* @memberOf punycode.ucs2
|
||
* @name decode
|
||
* @param {String} string The Unicode input string (UCS-2).
|
||
* @returns {Array} The new array of code points.
|
||
*/
|
||
function ucs2decode(string) {
|
||
var output = [],
|
||
counter = 0,
|
||
length = string.length,
|
||
value,
|
||
extra;
|
||
while (counter < length) {
|
||
value = string.charCodeAt(counter++);
|
||
if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
|
||
// high surrogate, and there is a next character
|
||
extra = string.charCodeAt(counter++);
|
||
if ((extra & 0xFC00) == 0xDC00) { // low surrogate
|
||
output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
|
||
} else {
|
||
// unmatched surrogate; only append this code unit, in case the next
|
||
// code unit is the high surrogate of a surrogate pair
|
||
output.push(value);
|
||
counter--;
|
||
}
|
||
} else {
|
||
output.push(value);
|
||
}
|
||
}
|
||
return output;
|
||
}
|
||
|
||
/**
|
||
* Creates a string based on an array of numeric code points.
|
||
* @see `punycode.ucs2.decode`
|
||
* @memberOf punycode.ucs2
|
||
* @name encode
|
||
* @param {Array} codePoints The array of numeric code points.
|
||
* @returns {String} The new Unicode string (UCS-2).
|
||
*/
|
||
function ucs2encode(array) {
|
||
return map(array, function(value) {
|
||
var output = '';
|
||
if (value > 0xFFFF) {
|
||
value -= 0x10000;
|
||
output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
|
||
value = 0xDC00 | value & 0x3FF;
|
||
}
|
||
output += stringFromCharCode(value);
|
||
return output;
|
||
}).join('');
|
||
}
|
||
|
||
/**
|
||
* Converts a basic code point into a digit/integer.
|
||
* @see `digitToBasic()`
|
||
* @private
|
||
* @param {Number} codePoint The basic numeric code point value.
|
||
* @returns {Number} The numeric value of a basic code point (for use in
|
||
* representing integers) in the range `0` to `base - 1`, or `base` if
|
||
* the code point does not represent a value.
|
||
*/
|
||
function basicToDigit(codePoint) {
|
||
if (codePoint - 48 < 10) {
|
||
return codePoint - 22;
|
||
}
|
||
if (codePoint - 65 < 26) {
|
||
return codePoint - 65;
|
||
}
|
||
if (codePoint - 97 < 26) {
|
||
return codePoint - 97;
|
||
}
|
||
return base;
|
||
}
|
||
|
||
/**
|
||
* Converts a digit/integer into a basic code point.
|
||
* @see `basicToDigit()`
|
||
* @private
|
||
* @param {Number} digit The numeric value of a basic code point.
|
||
* @returns {Number} The basic code point whose value (when used for
|
||
* representing integers) is `digit`, which needs to be in the range
|
||
* `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
|
||
* used; else, the lowercase form is used. The behavior is undefined
|
||
* if `flag` is non-zero and `digit` has no uppercase form.
|
||
*/
|
||
function digitToBasic(digit, flag) {
|
||
// 0..25 map to ASCII a..z or A..Z
|
||
// 26..35 map to ASCII 0..9
|
||
return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
|
||
}
|
||
|
||
/**
|
||
* Bias adaptation function as per section 3.4 of RFC 3492.
|
||
* http://tools.ietf.org/html/rfc3492#section-3.4
|
||
* @private
|
||
*/
|
||
function adapt(delta, numPoints, firstTime) {
|
||
var k = 0;
|
||
delta = firstTime ? floor(delta / damp) : delta >> 1;
|
||
delta += floor(delta / numPoints);
|
||
for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
|
||
delta = floor(delta / baseMinusTMin);
|
||
}
|
||
return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
|
||
}
|
||
|
||
/**
|
||
* Converts a Punycode string of ASCII-only symbols to a string of Unicode
|
||
* symbols.
|
||
* @memberOf punycode
|
||
* @param {String} input The Punycode string of ASCII-only symbols.
|
||
* @returns {String} The resulting string of Unicode symbols.
|
||
*/
|
||
function decode(input) {
|
||
// Don't use UCS-2
|
||
var output = [],
|
||
inputLength = input.length,
|
||
out,
|
||
i = 0,
|
||
n = initialN,
|
||
bias = initialBias,
|
||
basic,
|
||
j,
|
||
index,
|
||
oldi,
|
||
w,
|
||
k,
|
||
digit,
|
||
t,
|
||
/** Cached calculation results */
|
||
baseMinusT;
|
||
|
||
// Handle the basic code points: let `basic` be the number of input code
|
||
// points before the last delimiter, or `0` if there is none, then copy
|
||
// the first basic code points to the output.
|
||
|
||
basic = input.lastIndexOf(delimiter);
|
||
if (basic < 0) {
|
||
basic = 0;
|
||
}
|
||
|
||
for (j = 0; j < basic; ++j) {
|
||
// if it's not a basic code point
|
||
if (input.charCodeAt(j) >= 0x80) {
|
||
error('not-basic');
|
||
}
|
||
output.push(input.charCodeAt(j));
|
||
}
|
||
|
||
// Main decoding loop: start just after the last delimiter if any basic code
|
||
// points were copied; start at the beginning otherwise.
|
||
|
||
for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
|
||
|
||
// `index` is the index of the next character to be consumed.
|
||
// Decode a generalized variable-length integer into `delta`,
|
||
// which gets added to `i`. The overflow checking is easier
|
||
// if we increase `i` as we go, then subtract off its starting
|
||
// value at the end to obtain `delta`.
|
||
for (oldi = i, w = 1, k = base; /* no condition */; k += base) {
|
||
|
||
if (index >= inputLength) {
|
||
error('invalid-input');
|
||
}
|
||
|
||
digit = basicToDigit(input.charCodeAt(index++));
|
||
|
||
if (digit >= base || digit > floor((maxInt - i) / w)) {
|
||
error('overflow');
|
||
}
|
||
|
||
i += digit * w;
|
||
t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
|
||
|
||
if (digit < t) {
|
||
break;
|
||
}
|
||
|
||
baseMinusT = base - t;
|
||
if (w > floor(maxInt / baseMinusT)) {
|
||
error('overflow');
|
||
}
|
||
|
||
w *= baseMinusT;
|
||
|
||
}
|
||
|
||
out = output.length + 1;
|
||
bias = adapt(i - oldi, out, oldi == 0);
|
||
|
||
// `i` was supposed to wrap around from `out` to `0`,
|
||
// incrementing `n` each time, so we'll fix that now:
|
||
if (floor(i / out) > maxInt - n) {
|
||
error('overflow');
|
||
}
|
||
|
||
n += floor(i / out);
|
||
i %= out;
|
||
|
||
// Insert `n` at position `i` of the output
|
||
output.splice(i++, 0, n);
|
||
|
||
}
|
||
|
||
return ucs2encode(output);
|
||
}
|
||
|
||
/**
|
||
* Converts a string of Unicode symbols to a Punycode string of ASCII-only
|
||
* symbols.
|
||
* @memberOf punycode
|
||
* @param {String} input The string of Unicode symbols.
|
||
* @returns {String} The resulting Punycode string of ASCII-only symbols.
|
||
*/
|
||
function encode(input) {
|
||
var n,
|
||
delta,
|
||
handledCPCount,
|
||
basicLength,
|
||
bias,
|
||
j,
|
||
m,
|
||
q,
|
||
k,
|
||
t,
|
||
currentValue,
|
||
output = [],
|
||
/** `inputLength` will hold the number of code points in `input`. */
|
||
inputLength,
|
||
/** Cached calculation results */
|
||
handledCPCountPlusOne,
|
||
baseMinusT,
|
||
qMinusT;
|
||
|
||
// Convert the input in UCS-2 to Unicode
|
||
input = ucs2decode(input);
|
||
|
||
// Cache the length
|
||
inputLength = input.length;
|
||
|
||
// Initialize the state
|
||
n = initialN;
|
||
delta = 0;
|
||
bias = initialBias;
|
||
|
||
// Handle the basic code points
|
||
for (j = 0; j < inputLength; ++j) {
|
||
currentValue = input[j];
|
||
if (currentValue < 0x80) {
|
||
output.push(stringFromCharCode(currentValue));
|
||
}
|
||
}
|
||
|
||
handledCPCount = basicLength = output.length;
|
||
|
||
// `handledCPCount` is the number of code points that have been handled;
|
||
// `basicLength` is the number of basic code points.
|
||
|
||
// Finish the basic string - if it is not empty - with a delimiter
|
||
if (basicLength) {
|
||
output.push(delimiter);
|
||
}
|
||
|
||
// Main encoding loop:
|
||
while (handledCPCount < inputLength) {
|
||
|
||
// All non-basic code points < n have been handled already. Find the next
|
||
// larger one:
|
||
for (m = maxInt, j = 0; j < inputLength; ++j) {
|
||
currentValue = input[j];
|
||
if (currentValue >= n && currentValue < m) {
|
||
m = currentValue;
|
||
}
|
||
}
|
||
|
||
// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
|
||
// but guard against overflow
|
||
handledCPCountPlusOne = handledCPCount + 1;
|
||
if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
|
||
error('overflow');
|
||
}
|
||
|
||
delta += (m - n) * handledCPCountPlusOne;
|
||
n = m;
|
||
|
||
for (j = 0; j < inputLength; ++j) {
|
||
currentValue = input[j];
|
||
|
||
if (currentValue < n && ++delta > maxInt) {
|
||
error('overflow');
|
||
}
|
||
|
||
if (currentValue == n) {
|
||
// Represent delta as a generalized variable-length integer
|
||
for (q = delta, k = base; /* no condition */; k += base) {
|
||
t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
|
||
if (q < t) {
|
||
break;
|
||
}
|
||
qMinusT = q - t;
|
||
baseMinusT = base - t;
|
||
output.push(
|
||
stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
|
||
);
|
||
q = floor(qMinusT / baseMinusT);
|
||
}
|
||
|
||
output.push(stringFromCharCode(digitToBasic(q, 0)));
|
||
bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
|
||
delta = 0;
|
||
++handledCPCount;
|
||
}
|
||
}
|
||
|
||
++delta;
|
||
++n;
|
||
|
||
}
|
||
return output.join('');
|
||
}
|
||
|
||
/**
|
||
* Converts a Punycode string representing a domain name to Unicode. Only the
|
||
* Punycoded parts of the domain name will be converted, i.e. it doesn't
|
||
* matter if you call it on a string that has already been converted to
|
||
* Unicode.
|
||
* @memberOf punycode
|
||
* @param {String} domain The Punycode domain name to convert to Unicode.
|
||
* @returns {String} The Unicode representation of the given Punycode
|
||
* string.
|
||
*/
|
||
function toUnicode(domain) {
|
||
return mapDomain(domain, function(string) {
|
||
return regexPunycode.test(string)
|
||
? decode(string.slice(4).toLowerCase())
|
||
: string;
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Converts a Unicode string representing a domain name to Punycode. Only the
|
||
* non-ASCII parts of the domain name will be converted, i.e. it doesn't
|
||
* matter if you call it with a domain that's already in ASCII.
|
||
* @memberOf punycode
|
||
* @param {String} domain The domain name to convert, as a Unicode string.
|
||
* @returns {String} The Punycode representation of the given domain name.
|
||
*/
|
||
function toASCII(domain) {
|
||
return mapDomain(domain, function(string) {
|
||
return regexNonASCII.test(string)
|
||
? 'xn--' + encode(string)
|
||
: string;
|
||
});
|
||
}
|
||
|
||
/*--------------------------------------------------------------------------*/
|
||
|
||
/** Define the public API */
|
||
punycode = {
|
||
/**
|
||
* A string representing the current Punycode.js version number.
|
||
* @memberOf punycode
|
||
* @type String
|
||
*/
|
||
'version': '1.2.4',
|
||
/**
|
||
* An object of methods to convert from JavaScript's internal character
|
||
* representation (UCS-2) to Unicode code points, and back.
|
||
* @see <http://mathiasbynens.be/notes/javascript-encoding>
|
||
* @memberOf punycode
|
||
* @type Object
|
||
*/
|
||
'ucs2': {
|
||
'decode': ucs2decode,
|
||
'encode': ucs2encode
|
||
},
|
||
'decode': decode,
|
||
'encode': encode,
|
||
'toASCII': toASCII,
|
||
'toUnicode': toUnicode
|
||
};
|
||
|
||
/** Expose `punycode` */
|
||
// Some AMD build optimizers, like r.js, check for specific condition patterns
|
||
// like the following:
|
||
if (
|
||
typeof define == 'function' &&
|
||
typeof define.amd == 'object' &&
|
||
define.amd
|
||
) {
|
||
define('punycode', function() {
|
||
return punycode;
|
||
});
|
||
} else if (freeExports && !freeExports.nodeType) {
|
||
if (freeModule) { // in Node.js or RingoJS v0.8.0+
|
||
freeModule.exports = punycode;
|
||
} else { // in Narwhal or RingoJS v0.7.0-
|
||
for (key in punycode) {
|
||
punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
|
||
}
|
||
}
|
||
} else { // in Rhino or a web browser
|
||
root.punycode = punycode;
|
||
}
|
||
|
||
}(this));
|
||
|
||
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
||
},{}],4:[function(require,module,exports){
|
||
var log = require('./log');
|
||
var Promise = require('./promise');
|
||
|
||
function restoreOwnerScroll(ownerDocument, x, y) {
|
||
if (ownerDocument.defaultView && (x !== ownerDocument.defaultView.pageXOffset || y !== ownerDocument.defaultView.pageYOffset)) {
|
||
ownerDocument.defaultView.scrollTo(x, y);
|
||
}
|
||
}
|
||
|
||
function cloneCanvasContents(canvas, clonedCanvas) {
|
||
try {
|
||
if (clonedCanvas) {
|
||
clonedCanvas.width = canvas.width;
|
||
clonedCanvas.height = canvas.height;
|
||
clonedCanvas.getContext("2d").putImageData(canvas.getContext("2d").getImageData(0, 0, canvas.width, canvas.height), 0, 0);
|
||
}
|
||
} catch(e) {
|
||
log("Unable to copy canvas content from", canvas, e);
|
||
}
|
||
}
|
||
|
||
function cloneNode(node, javascriptEnabled) {
|
||
var clone = node.nodeType === 3 ? document.createTextNode(node.nodeValue) : node.cloneNode(false);
|
||
|
||
var child = node.firstChild;
|
||
while(child) {
|
||
if (javascriptEnabled === true || child.nodeType !== 1 || child.nodeName !== 'SCRIPT') {
|
||
clone.appendChild(cloneNode(child, javascriptEnabled));
|
||
}
|
||
child = child.nextSibling;
|
||
}
|
||
|
||
if (node.nodeType === 1) {
|
||
clone._scrollTop = node.scrollTop;
|
||
clone._scrollLeft = node.scrollLeft;
|
||
if (node.nodeName === "CANVAS") {
|
||
cloneCanvasContents(node, clone);
|
||
} else if (node.nodeName === "TEXTAREA" || node.nodeName === "SELECT") {
|
||
clone.value = node.value;
|
||
}
|
||
}
|
||
|
||
return clone;
|
||
}
|
||
|
||
function initNode(node) {
|
||
if (node.nodeType === 1) {
|
||
node.scrollTop = node._scrollTop;
|
||
node.scrollLeft = node._scrollLeft;
|
||
|
||
var child = node.firstChild;
|
||
while(child) {
|
||
initNode(child);
|
||
child = child.nextSibling;
|
||
}
|
||
}
|
||
}
|
||
|
||
module.exports = function(ownerDocument, containerDocument, width, height, options, x ,y) {
|
||
var documentElement = cloneNode(ownerDocument.documentElement, options.javascriptEnabled);
|
||
var container = containerDocument.createElement("iframe");
|
||
|
||
container.className = "html2canvas-container";
|
||
container.style.visibility = "hidden";
|
||
container.style.position = "fixed";
|
||
container.style.left = "-10000px";
|
||
container.style.top = "0px";
|
||
container.style.border = "0";
|
||
container.width = width;
|
||
container.height = height;
|
||
container.scrolling = "no"; // ios won't scroll without it
|
||
containerDocument.body.appendChild(container);
|
||
|
||
return new Promise(function(resolve) {
|
||
var documentClone = container.contentWindow.document;
|
||
|
||
/* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
|
||
if window url is about:blank, we can assign the url to current by writing onto the document
|
||
*/
|
||
container.contentWindow.onload = container.onload = function() {
|
||
var interval = setInterval(function() {
|
||
if (documentClone.body.childNodes.length > 0) {
|
||
initNode(documentClone.documentElement);
|
||
clearInterval(interval);
|
||
if (options.type === "view") {
|
||
container.contentWindow.scrollTo(x, y);
|
||
if ((/(iPad|iPhone|iPod)/g).test(navigator.userAgent) && (container.contentWindow.scrollY !== y || container.contentWindow.scrollX !== x)) {
|
||
documentClone.documentElement.style.top = (-y) + "px";
|
||
documentClone.documentElement.style.left = (-x) + "px";
|
||
documentClone.documentElement.style.position = 'absolute';
|
||
}
|
||
}
|
||
resolve(container);
|
||
}
|
||
}, 50);
|
||
};
|
||
|
||
documentClone.open();
|
||
documentClone.write("<!DOCTYPE html><html></html>");
|
||
// Chrome scrolls the parent document for some reason after the write to the cloned window???
|
||
restoreOwnerScroll(ownerDocument, x, y);
|
||
documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
|
||
documentClone.close();
|
||
});
|
||
};
|
||
|
||
},{"./log":15,"./promise":18}],5:[function(require,module,exports){
|
||
// http://dev.w3.org/csswg/css-color/
|
||
|
||
function Color(value) {
|
||
this.r = 0;
|
||
this.g = 0;
|
||
this.b = 0;
|
||
this.a = null;
|
||
var result = this.fromArray(value) ||
|
||
this.namedColor(value) ||
|
||
this.rgb(value) ||
|
||
this.rgba(value) ||
|
||
this.hex6(value) ||
|
||
this.hex3(value);
|
||
}
|
||
|
||
Color.prototype.darken = function(amount) {
|
||
var a = 1 - amount;
|
||
return new Color([
|
||
Math.round(this.r * a),
|
||
Math.round(this.g * a),
|
||
Math.round(this.b * a),
|
||
this.a
|
||
]);
|
||
};
|
||
|
||
Color.prototype.isTransparent = function() {
|
||
return this.a === 0;
|
||
};
|
||
|
||
Color.prototype.isBlack = function() {
|
||
return this.r === 0 && this.g === 0 && this.b === 0;
|
||
};
|
||
|
||
Color.prototype.fromArray = function(array) {
|
||
if (Array.isArray(array)) {
|
||
this.r = Math.min(array[0], 255);
|
||
this.g = Math.min(array[1], 255);
|
||
this.b = Math.min(array[2], 255);
|
||
if (array.length > 3) {
|
||
this.a = array[3];
|
||
}
|
||
}
|
||
|
||
return (Array.isArray(array));
|
||
};
|
||
|
||
var _hex3 = /^#([a-f0-9]{3})$/i;
|
||
|
||
Color.prototype.hex3 = function(value) {
|
||
var match = null;
|
||
if ((match = value.match(_hex3)) !== null) {
|
||
this.r = parseInt(match[1][0] + match[1][0], 16);
|
||
this.g = parseInt(match[1][1] + match[1][1], 16);
|
||
this.b = parseInt(match[1][2] + match[1][2], 16);
|
||
}
|
||
return match !== null;
|
||
};
|
||
|
||
var _hex6 = /^#([a-f0-9]{6})$/i;
|
||
|
||
Color.prototype.hex6 = function(value) {
|
||
var match = null;
|
||
if ((match = value.match(_hex6)) !== null) {
|
||
this.r = parseInt(match[1].substring(0, 2), 16);
|
||
this.g = parseInt(match[1].substring(2, 4), 16);
|
||
this.b = parseInt(match[1].substring(4, 6), 16);
|
||
}
|
||
return match !== null;
|
||
};
|
||
|
||
|
||
var _rgb = /^rgb\((\d{1,3}) *, *(\d{1,3}) *, *(\d{1,3})\)$/;
|
||
|
||
Color.prototype.rgb = function(value) {
|
||
var match = null;
|
||
if ((match = value.match(_rgb)) !== null) {
|
||
this.r = Number(match[1]);
|
||
this.g = Number(match[2]);
|
||
this.b = Number(match[3]);
|
||
}
|
||
return match !== null;
|
||
};
|
||
|
||
var _rgba = /^rgba\((\d{1,3}) *, *(\d{1,3}) *, *(\d{1,3}) *, *(\d+\.?\d*)\)$/;
|
||
|
||
Color.prototype.rgba = function(value) {
|
||
var match = null;
|
||
if ((match = value.match(_rgba)) !== null) {
|
||
this.r = Number(match[1]);
|
||
this.g = Number(match[2]);
|
||
this.b = Number(match[3]);
|
||
this.a = Number(match[4]);
|
||
}
|
||
return match !== null;
|
||
};
|
||
|
||
Color.prototype.toString = function() {
|
||
return this.a !== null && this.a !== 1 ?
|
||
"rgba(" + [this.r, this.g, this.b, this.a].join(",") + ")" :
|
||
"rgb(" + [this.r, this.g, this.b].join(",") + ")";
|
||
};
|
||
|
||
Color.prototype.namedColor = function(value) {
|
||
var color = colors[value.toLowerCase()];
|
||
if (color) {
|
||
this.r = color[0];
|
||
this.g = color[1];
|
||
this.b = color[2];
|
||
} else if (value.toLowerCase() === "transparent") {
|
||
this.r = this.g = this.b = this.a = 0;
|
||
return true;
|
||
}
|
||
|
||
return !!color;
|
||
};
|
||
|
||
Color.prototype.isColor = true;
|
||
|
||
// JSON.stringify([].slice.call($$('.named-color-table tr'), 1).map(function(row) { return [row.childNodes[3].textContent, row.childNodes[5].textContent.trim().split(",").map(Number)] }).reduce(function(data, row) {data[row[0]] = row[1]; return data}, {}))
|
||
var colors = {
|
||
"aliceblue": [240, 248, 255],
|
||
"antiquewhite": [250, 235, 215],
|
||
"aqua": [0, 255, 255],
|
||
"aquamarine": [127, 255, 212],
|
||
"azure": [240, 255, 255],
|
||
"beige": [245, 245, 220],
|
||
"bisque": [255, 228, 196],
|
||
"black": [0, 0, 0],
|
||
"blanchedalmond": [255, 235, 205],
|
||
"blue": [0, 0, 255],
|
||
"blueviolet": [138, 43, 226],
|
||
"brown": [165, 42, 42],
|
||
"burlywood": [222, 184, 135],
|
||
"cadetblue": [95, 158, 160],
|
||
"chartreuse": [127, 255, 0],
|
||
"chocolate": [210, 105, 30],
|
||
"coral": [255, 127, 80],
|
||
"cornflowerblue": [100, 149, 237],
|
||
"cornsilk": [255, 248, 220],
|
||
"crimson": [220, 20, 60],
|
||
"cyan": [0, 255, 255],
|
||
"darkblue": [0, 0, 139],
|
||
"darkcyan": [0, 139, 139],
|
||
"darkgoldenrod": [184, 134, 11],
|
||
"darkgray": [169, 169, 169],
|
||
"darkgreen": [0, 100, 0],
|
||
"darkgrey": [169, 169, 169],
|
||
"darkkhaki": [189, 183, 107],
|
||
"darkmagenta": [139, 0, 139],
|
||
"darkolivegreen": [85, 107, 47],
|
||
"darkorange": [255, 140, 0],
|
||
"darkorchid": [153, 50, 204],
|
||
"darkred": [139, 0, 0],
|
||
"darksalmon": [233, 150, 122],
|
||
"darkseagreen": [143, 188, 143],
|
||
"darkslateblue": [72, 61, 139],
|
||
"darkslategray": [47, 79, 79],
|
||
"darkslategrey": [47, 79, 79],
|
||
"darkturquoise": [0, 206, 209],
|
||
"darkviolet": [148, 0, 211],
|
||
"deeppink": [255, 20, 147],
|
||
"deepskyblue": [0, 191, 255],
|
||
"dimgray": [105, 105, 105],
|
||
"dimgrey": [105, 105, 105],
|
||
"dodgerblue": [30, 144, 255],
|
||
"firebrick": [178, 34, 34],
|
||
"floralwhite": [255, 250, 240],
|
||
"forestgreen": [34, 139, 34],
|
||
"fuchsia": [255, 0, 255],
|
||
"gainsboro": [220, 220, 220],
|
||
"ghostwhite": [248, 248, 255],
|
||
"gold": [255, 215, 0],
|
||
"goldenrod": [218, 165, 32],
|
||
"gray": [128, 128, 128],
|
||
"green": [0, 128, 0],
|
||
"greenyellow": [173, 255, 47],
|
||
"grey": [128, 128, 128],
|
||
"honeydew": [240, 255, 240],
|
||
"hotpink": [255, 105, 180],
|
||
"indianred": [205, 92, 92],
|
||
"indigo": [75, 0, 130],
|
||
"ivory": [255, 255, 240],
|
||
"khaki": [240, 230, 140],
|
||
"lavender": [230, 230, 250],
|
||
"lavenderblush": [255, 240, 245],
|
||
"lawngreen": [124, 252, 0],
|
||
"lemonchiffon": [255, 250, 205],
|
||
"lightblue": [173, 216, 230],
|
||
"lightcoral": [240, 128, 128],
|
||
"lightcyan": [224, 255, 255],
|
||
"lightgoldenrodyellow": [250, 250, 210],
|
||
"lightgray": [211, 211, 211],
|
||
"lightgreen": [144, 238, 144],
|
||
"lightgrey": [211, 211, 211],
|
||
"lightpink": [255, 182, 193],
|
||
"lightsalmon": [255, 160, 122],
|
||
"lightseagreen": [32, 178, 170],
|
||
"lightskyblue": [135, 206, 250],
|
||
"lightslategray": [119, 136, 153],
|
||
"lightslategrey": [119, 136, 153],
|
||
"lightsteelblue": [176, 196, 222],
|
||
"lightyellow": [255, 255, 224],
|
||
"lime": [0, 255, 0],
|
||
"limegreen": [50, 205, 50],
|
||
"linen": [250, 240, 230],
|
||
"magenta": [255, 0, 255],
|
||
"maroon": [128, 0, 0],
|
||
"mediumaquamarine": [102, 205, 170],
|
||
"mediumblue": [0, 0, 205],
|
||
"mediumorchid": [186, 85, 211],
|
||
"mediumpurple": [147, 112, 219],
|
||
"mediumseagreen": [60, 179, 113],
|
||
"mediumslateblue": [123, 104, 238],
|
||
"mediumspringgreen": [0, 250, 154],
|
||
"mediumturquoise": [72, 209, 204],
|
||
"mediumvioletred": [199, 21, 133],
|
||
"midnightblue": [25, 25, 112],
|
||
"mintcream": [245, 255, 250],
|
||
"mistyrose": [255, 228, 225],
|
||
"moccasin": [255, 228, 181],
|
||
"navajowhite": [255, 222, 173],
|
||
"navy": [0, 0, 128],
|
||
"oldlace": [253, 245, 230],
|
||
"olive": [128, 128, 0],
|
||
"olivedrab": [107, 142, 35],
|
||
"orange": [255, 165, 0],
|
||
"orangered": [255, 69, 0],
|
||
"orchid": [218, 112, 214],
|
||
"palegoldenrod": [238, 232, 170],
|
||
"palegreen": [152, 251, 152],
|
||
"paleturquoise": [175, 238, 238],
|
||
"palevioletred": [219, 112, 147],
|
||
"papayawhip": [255, 239, 213],
|
||
"peachpuff": [255, 218, 185],
|
||
"peru": [205, 133, 63],
|
||
"pink": [255, 192, 203],
|
||
"plum": [221, 160, 221],
|
||
"powderblue": [176, 224, 230],
|
||
"purple": [128, 0, 128],
|
||
"rebeccapurple": [102, 51, 153],
|
||
"red": [255, 0, 0],
|
||
"rosybrown": [188, 143, 143],
|
||
"royalblue": [65, 105, 225],
|
||
"saddlebrown": [139, 69, 19],
|
||
"salmon": [250, 128, 114],
|
||
"sandybrown": [244, 164, 96],
|
||
"seagreen": [46, 139, 87],
|
||
"seashell": [255, 245, 238],
|
||
"sienna": [160, 82, 45],
|
||
"silver": [192, 192, 192],
|
||
"skyblue": [135, 206, 235],
|
||
"slateblue": [106, 90, 205],
|
||
"slategray": [112, 128, 144],
|
||
"slategrey": [112, 128, 144],
|
||
"snow": [255, 250, 250],
|
||
"springgreen": [0, 255, 127],
|
||
"steelblue": [70, 130, 180],
|
||
"tan": [210, 180, 140],
|
||
"teal": [0, 128, 128],
|
||
"thistle": [216, 191, 216],
|
||
"tomato": [255, 99, 71],
|
||
"turquoise": [64, 224, 208],
|
||
"violet": [238, 130, 238],
|
||
"wheat": [245, 222, 179],
|
||
"white": [255, 255, 255],
|
||
"whitesmoke": [245, 245, 245],
|
||
"yellow": [255, 255, 0],
|
||
"yellowgreen": [154, 205, 50]
|
||
};
|
||
|
||
module.exports = Color;
|
||
|
||
},{}],6:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
var Support = require('./support');
|
||
var CanvasRenderer = require('./renderers/canvas');
|
||
var ImageLoader = require('./imageloader');
|
||
var NodeParser = require('./nodeparser');
|
||
var NodeContainer = require('./nodecontainer');
|
||
var log = require('./log');
|
||
var utils = require('./utils');
|
||
var createWindowClone = require('./clone');
|
||
var loadUrlDocument = require('./proxy').loadUrlDocument;
|
||
var getBounds = utils.getBounds;
|
||
|
||
var html2canvasNodeAttribute = "data-html2canvas-node";
|
||
var html2canvasCloneIndex = 0;
|
||
|
||
function html2canvas(nodeList, options) {
|
||
var index = html2canvasCloneIndex++;
|
||
options = options || {};
|
||
if (options.logging) {
|
||
window.html2canvas.logging = true;
|
||
window.html2canvas.start = Date.now();
|
||
}
|
||
|
||
options.async = typeof(options.async) === "undefined" ? true : options.async;
|
||
options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
|
||
options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
|
||
options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
|
||
options.imageTimeout = typeof(options.imageTimeout) === "undefined" ? 10000 : options.imageTimeout;
|
||
options.renderer = typeof(options.renderer) === "function" ? options.renderer : CanvasRenderer;
|
||
options.strict = !!options.strict;
|
||
|
||
if (typeof(nodeList) === "string") {
|
||
if (typeof(options.proxy) !== "string") {
|
||
return Promise.reject("Proxy must be used when rendering url");
|
||
}
|
||
var width = options.width != null ? options.width : window.innerWidth;
|
||
var height = options.height != null ? options.height : window.innerHeight;
|
||
return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, width, height, options).then(function(container) {
|
||
return renderWindow(container.contentWindow.document.documentElement, container, options, width, height);
|
||
});
|
||
}
|
||
|
||
var node = ((nodeList === undefined) ? [document.documentElement] : ((nodeList.length) ? nodeList : [nodeList]))[0];
|
||
node.setAttribute(html2canvasNodeAttribute + index, index);
|
||
return renderDocument(node.ownerDocument, options, node.ownerDocument.defaultView.innerWidth, node.ownerDocument.defaultView.innerHeight, index).then(function(canvas) {
|
||
if (typeof(options.onrendered) === "function") {
|
||
log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
|
||
options.onrendered(canvas);
|
||
}
|
||
return canvas;
|
||
});
|
||
}
|
||
|
||
html2canvas.Promise = Promise;
|
||
html2canvas.CanvasRenderer = CanvasRenderer;
|
||
html2canvas.NodeContainer = NodeContainer;
|
||
html2canvas.log = log;
|
||
html2canvas.utils = utils;
|
||
|
||
var html2canvasExport = (typeof(document) === "undefined" || typeof(Object.create) !== "function" || typeof(document.createElement("canvas").getContext) !== "function") ? function() {
|
||
return Promise.reject("No canvas support");
|
||
} : html2canvas;
|
||
|
||
module.exports = html2canvasExport;
|
||
|
||
if (typeof(define) === 'function' && define.amd) {
|
||
define('html2canvas', [], function() {
|
||
return html2canvasExport;
|
||
});
|
||
}
|
||
|
||
function renderDocument(document, options, windowWidth, windowHeight, html2canvasIndex) {
|
||
return createWindowClone(document, document, windowWidth, windowHeight, options, document.defaultView.pageXOffset, document.defaultView.pageYOffset).then(function(container) {
|
||
log("Document cloned");
|
||
var attributeName = html2canvasNodeAttribute + html2canvasIndex;
|
||
var selector = "[" + attributeName + "='" + html2canvasIndex + "']";
|
||
document.querySelector(selector).removeAttribute(attributeName);
|
||
var clonedWindow = container.contentWindow;
|
||
var node = clonedWindow.document.querySelector(selector);
|
||
var oncloneHandler = (typeof(options.onclone) === "function") ? Promise.resolve(options.onclone(clonedWindow.document)) : Promise.resolve(true);
|
||
return oncloneHandler.then(function() {
|
||
return renderWindow(node, container, options, windowWidth, windowHeight);
|
||
});
|
||
});
|
||
}
|
||
|
||
function renderWindow(node, container, options, windowWidth, windowHeight) {
|
||
var clonedWindow = container.contentWindow;
|
||
var support = new Support(clonedWindow.document);
|
||
var imageLoader = new ImageLoader(options, support);
|
||
var bounds = getBounds(node);
|
||
var width = options.type === "view" ? windowWidth : documentWidth(clonedWindow.document);
|
||
var height = options.type === "view" ? windowHeight : documentHeight(clonedWindow.document);
|
||
var renderer = new options.renderer(width, height, imageLoader, options, document);
|
||
var parser = new NodeParser(node, renderer, support, imageLoader, options);
|
||
return parser.ready.then(function() {
|
||
log("Finished rendering");
|
||
var canvas;
|
||
|
||
if (options.type === "view") {
|
||
canvas = crop(renderer.canvas, {width: renderer.canvas.width, height: renderer.canvas.height, top: 0, left: 0, x: 0, y: 0});
|
||
} else if (node === clonedWindow.document.body || node === clonedWindow.document.documentElement || options.canvas != null) {
|
||
canvas = renderer.canvas;
|
||
} else {
|
||
canvas = crop(renderer.canvas, {width: options.width != null ? options.width : bounds.width, height: options.height != null ? options.height : bounds.height, top: bounds.top, left: bounds.left, x: clonedWindow.pageXOffset, y: clonedWindow.pageYOffset});
|
||
}
|
||
|
||
cleanupContainer(container, options);
|
||
return canvas;
|
||
});
|
||
}
|
||
|
||
function cleanupContainer(container, options) {
|
||
if (options.removeContainer) {
|
||
container.parentNode.removeChild(container);
|
||
log("Cleaned up container");
|
||
}
|
||
}
|
||
|
||
function crop(canvas, bounds) {
|
||
var croppedCanvas = document.createElement("canvas");
|
||
var x1 = Math.min(canvas.width - 1, Math.max(0, bounds.left));
|
||
var x2 = Math.min(canvas.width, Math.max(1, bounds.left + bounds.width));
|
||
var y1 = Math.min(canvas.height - 1, Math.max(0, bounds.top));
|
||
var y2 = Math.min(canvas.height, Math.max(1, bounds.top + bounds.height));
|
||
croppedCanvas.width = bounds.width;
|
||
croppedCanvas.height = bounds.height;
|
||
log("Cropping canvas at:", "left:", bounds.left, "top:", bounds.top, "width:", (x2-x1), "height:", (y2-y1));
|
||
log("Resulting crop with width", bounds.width, "and height", bounds.height, " with x", x1, "and y", y1);
|
||
croppedCanvas.getContext("2d").drawImage(canvas, x1, y1, x2-x1, y2-y1, bounds.x, bounds.y, x2-x1, y2-y1);
|
||
return croppedCanvas;
|
||
}
|
||
|
||
function documentWidth (doc) {
|
||
return Math.max(
|
||
Math.max(doc.body.scrollWidth, doc.documentElement.scrollWidth),
|
||
Math.max(doc.body.offsetWidth, doc.documentElement.offsetWidth),
|
||
Math.max(doc.body.clientWidth, doc.documentElement.clientWidth)
|
||
);
|
||
}
|
||
|
||
function documentHeight (doc) {
|
||
return Math.max(
|
||
Math.max(doc.body.scrollHeight, doc.documentElement.scrollHeight),
|
||
Math.max(doc.body.offsetHeight, doc.documentElement.offsetHeight),
|
||
Math.max(doc.body.clientHeight, doc.documentElement.clientHeight)
|
||
);
|
||
}
|
||
|
||
function absoluteUrl(url) {
|
||
var link = document.createElement("a");
|
||
link.href = url;
|
||
link.href = link.href;
|
||
return link;
|
||
}
|
||
|
||
},{"./clone":4,"./imageloader":13,"./log":15,"./nodecontainer":16,"./nodeparser":17,"./promise":18,"./proxy":19,"./renderers/canvas":23,"./support":25,"./utils":29}],7:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
var log = require('./log');
|
||
var smallImage = require('./utils').smallImage;
|
||
|
||
function DummyImageContainer(src) {
|
||
this.src = src;
|
||
log("DummyImageContainer for", src);
|
||
if (!this.promise || !this.image) {
|
||
log("Initiating DummyImageContainer");
|
||
DummyImageContainer.prototype.image = new Image();
|
||
var image = this.image;
|
||
DummyImageContainer.prototype.promise = new Promise(function(resolve, reject) {
|
||
image.onload = resolve;
|
||
image.onerror = reject;
|
||
image.src = smallImage();
|
||
if (image.complete === true) {
|
||
resolve(image);
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
module.exports = DummyImageContainer;
|
||
|
||
},{"./log":15,"./promise":18,"./utils":29}],8:[function(require,module,exports){
|
||
var smallImage = require('./utils').smallImage;
|
||
|
||
function Font(family, size) {
|
||
var container = document.createElement('div'),
|
||
img = document.createElement('img'),
|
||
span = document.createElement('span'),
|
||
sampleText = 'Hidden Text',
|
||
baseline,
|
||
middle;
|
||
|
||
container.style.visibility = "hidden";
|
||
container.style.fontFamily = family;
|
||
container.style.fontSize = size;
|
||
container.style.margin = 0;
|
||
container.style.padding = 0;
|
||
|
||
document.body.appendChild(container);
|
||
|
||
img.src = smallImage();
|
||
img.width = 1;
|
||
img.height = 1;
|
||
|
||
img.style.margin = 0;
|
||
img.style.padding = 0;
|
||
img.style.verticalAlign = "baseline";
|
||
|
||
span.style.fontFamily = family;
|
||
span.style.fontSize = size;
|
||
span.style.margin = 0;
|
||
span.style.padding = 0;
|
||
|
||
span.appendChild(document.createTextNode(sampleText));
|
||
container.appendChild(span);
|
||
container.appendChild(img);
|
||
baseline = (img.offsetTop - span.offsetTop) + 1;
|
||
|
||
container.removeChild(span);
|
||
container.appendChild(document.createTextNode(sampleText));
|
||
|
||
container.style.lineHeight = "normal";
|
||
img.style.verticalAlign = "super";
|
||
|
||
middle = (img.offsetTop-container.offsetTop) + 1;
|
||
|
||
document.body.removeChild(container);
|
||
|
||
this.baseline = baseline;
|
||
this.lineWidth = 1;
|
||
this.middle = middle;
|
||
}
|
||
|
||
module.exports = Font;
|
||
|
||
},{"./utils":29}],9:[function(require,module,exports){
|
||
var Font = require('./font');
|
||
|
||
function FontMetrics() {
|
||
this.data = {};
|
||
}
|
||
|
||
FontMetrics.prototype.getMetrics = function(family, size) {
|
||
if (this.data[family + "-" + size] === undefined) {
|
||
this.data[family + "-" + size] = new Font(family, size);
|
||
}
|
||
return this.data[family + "-" + size];
|
||
};
|
||
|
||
module.exports = FontMetrics;
|
||
|
||
},{"./font":8}],10:[function(require,module,exports){
|
||
var utils = require('./utils');
|
||
var Promise = require('./promise');
|
||
var getBounds = utils.getBounds;
|
||
var loadUrlDocument = require('./proxy').loadUrlDocument;
|
||
|
||
function FrameContainer(container, sameOrigin, options) {
|
||
this.image = null;
|
||
this.src = container;
|
||
var self = this;
|
||
var bounds = getBounds(container);
|
||
this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
|
||
if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
|
||
container.contentWindow.onload = container.onload = function() {
|
||
resolve(container);
|
||
};
|
||
} else {
|
||
resolve(container);
|
||
}
|
||
})).then(function(container) {
|
||
var html2canvas = require('./core');
|
||
return html2canvas(container.contentWindow.document.documentElement, {type: 'view', width: container.width, height: container.height, proxy: options.proxy, javascriptEnabled: options.javascriptEnabled, removeContainer: options.removeContainer, allowTaint: options.allowTaint, imageTimeout: options.imageTimeout / 2});
|
||
}).then(function(canvas) {
|
||
return self.image = canvas;
|
||
});
|
||
}
|
||
|
||
FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
|
||
var container = this.src;
|
||
return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
|
||
};
|
||
|
||
module.exports = FrameContainer;
|
||
|
||
},{"./core":6,"./promise":18,"./proxy":19,"./utils":29}],11:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
|
||
function GradientContainer(imageData) {
|
||
this.src = imageData.value;
|
||
this.colorStops = [];
|
||
this.type = null;
|
||
this.x0 = 0.5;
|
||
this.y0 = 0.5;
|
||
this.x1 = 0.5;
|
||
this.y1 = 0.5;
|
||
this.promise = Promise.resolve(true);
|
||
}
|
||
|
||
GradientContainer.prototype.TYPES = {
|
||
LINEAR: 1,
|
||
RADIAL: 2
|
||
};
|
||
|
||
module.exports = GradientContainer;
|
||
|
||
},{"./promise":18}],12:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
|
||
function ImageContainer(src, cors) {
|
||
this.src = src;
|
||
this.image = new Image();
|
||
var self = this;
|
||
this.tainted = null;
|
||
this.promise = new Promise(function(resolve, reject) {
|
||
self.image.onload = resolve;
|
||
self.image.onerror = reject;
|
||
if (cors) {
|
||
self.image.crossOrigin = "anonymous";
|
||
}
|
||
self.image.src = src;
|
||
if (self.image.complete === true) {
|
||
resolve(self.image);
|
||
}
|
||
});
|
||
}
|
||
|
||
module.exports = ImageContainer;
|
||
|
||
},{"./promise":18}],13:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
var log = require('./log');
|
||
var ImageContainer = require('./imagecontainer');
|
||
var DummyImageContainer = require('./dummyimagecontainer');
|
||
var ProxyImageContainer = require('./proxyimagecontainer');
|
||
var FrameContainer = require('./framecontainer');
|
||
var SVGContainer = require('./svgcontainer');
|
||
var SVGNodeContainer = require('./svgnodecontainer');
|
||
var LinearGradientContainer = require('./lineargradientcontainer');
|
||
var WebkitGradientContainer = require('./webkitgradientcontainer');
|
||
var bind = require('./utils').bind;
|
||
|
||
function ImageLoader(options, support) {
|
||
this.link = null;
|
||
this.options = options;
|
||
this.support = support;
|
||
this.origin = this.getOrigin(window.location.href);
|
||
}
|
||
|
||
ImageLoader.prototype.findImages = function(nodes) {
|
||
var images = [];
|
||
nodes.reduce(function(imageNodes, container) {
|
||
switch(container.node.nodeName) {
|
||
case "IMG":
|
||
return imageNodes.concat([{
|
||
args: [container.node.src],
|
||
method: "url"
|
||
}]);
|
||
case "svg":
|
||
case "IFRAME":
|
||
return imageNodes.concat([{
|
||
args: [container.node],
|
||
method: container.node.nodeName
|
||
}]);
|
||
}
|
||
return imageNodes;
|
||
}, []).forEach(this.addImage(images, this.loadImage), this);
|
||
return images;
|
||
};
|
||
|
||
ImageLoader.prototype.findBackgroundImage = function(images, container) {
|
||
container.parseBackgroundImages().filter(this.hasImageBackground).forEach(this.addImage(images, this.loadImage), this);
|
||
return images;
|
||
};
|
||
|
||
ImageLoader.prototype.addImage = function(images, callback) {
|
||
return function(newImage) {
|
||
newImage.args.forEach(function(image) {
|
||
if (!this.imageExists(images, image)) {
|
||
images.splice(0, 0, callback.call(this, newImage));
|
||
log('Added image #' + (images.length), typeof(image) === "string" ? image.substring(0, 100) : image);
|
||
}
|
||
}, this);
|
||
};
|
||
};
|
||
|
||
ImageLoader.prototype.hasImageBackground = function(imageData) {
|
||
return imageData.method !== "none";
|
||
};
|
||
|
||
ImageLoader.prototype.loadImage = function(imageData) {
|
||
if (imageData.method === "url") {
|
||
var src = imageData.args[0];
|
||
if (this.isSVG(src) && !this.support.svg && !this.options.allowTaint) {
|
||
return new SVGContainer(src);
|
||
} else if (src.match(/data:image\/.*;base64,/i)) {
|
||
return new ImageContainer(src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, ''), false);
|
||
} else if (this.isSameOrigin(src) || this.options.allowTaint === true || this.isSVG(src)) {
|
||
return new ImageContainer(src, false);
|
||
} else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) {
|
||
return new ImageContainer(src, true);
|
||
} else if (this.options.proxy) {
|
||
return new ProxyImageContainer(src, this.options.proxy);
|
||
} else {
|
||
return new DummyImageContainer(src);
|
||
}
|
||
} else if (imageData.method === "linear-gradient") {
|
||
return new LinearGradientContainer(imageData);
|
||
} else if (imageData.method === "gradient") {
|
||
return new WebkitGradientContainer(imageData);
|
||
} else if (imageData.method === "svg") {
|
||
return new SVGNodeContainer(imageData.args[0], this.support.svg);
|
||
} else if (imageData.method === "IFRAME") {
|
||
return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
|
||
} else {
|
||
return new DummyImageContainer(imageData);
|
||
}
|
||
};
|
||
|
||
ImageLoader.prototype.isSVG = function(src) {
|
||
return src.substring(src.length - 3).toLowerCase() === "svg" || SVGContainer.prototype.isInline(src);
|
||
};
|
||
|
||
ImageLoader.prototype.imageExists = function(images, src) {
|
||
return images.some(function(image) {
|
||
return image.src === src;
|
||
});
|
||
};
|
||
|
||
ImageLoader.prototype.isSameOrigin = function(url) {
|
||
return (this.getOrigin(url) === this.origin);
|
||
};
|
||
|
||
ImageLoader.prototype.getOrigin = function(url) {
|
||
var link = this.link || (this.link = document.createElement("a"));
|
||
link.href = url;
|
||
link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
|
||
return link.protocol + link.hostname + link.port;
|
||
};
|
||
|
||
ImageLoader.prototype.getPromise = function(container) {
|
||
return this.timeout(container, this.options.imageTimeout)['catch'](function() {
|
||
var dummy = new DummyImageContainer(container.src);
|
||
return dummy.promise.then(function(image) {
|
||
container.image = image;
|
||
});
|
||
});
|
||
};
|
||
|
||
ImageLoader.prototype.get = function(src) {
|
||
var found = null;
|
||
return this.images.some(function(img) {
|
||
return (found = img).src === src;
|
||
}) ? found : null;
|
||
};
|
||
|
||
ImageLoader.prototype.fetch = function(nodes) {
|
||
this.images = nodes.reduce(bind(this.findBackgroundImage, this), this.findImages(nodes));
|
||
this.images.forEach(function(image, index) {
|
||
image.promise.then(function() {
|
||
log("Succesfully loaded image #"+ (index+1), image);
|
||
}, function(e) {
|
||
log("Failed loading image #"+ (index+1), image, e);
|
||
});
|
||
});
|
||
this.ready = Promise.all(this.images.map(this.getPromise, this));
|
||
log("Finished searching images");
|
||
return this;
|
||
};
|
||
|
||
ImageLoader.prototype.timeout = function(container, timeout) {
|
||
var timer;
|
||
var promise = Promise.race([container.promise, new Promise(function(res, reject) {
|
||
timer = setTimeout(function() {
|
||
log("Timed out loading image", container);
|
||
reject(container);
|
||
}, timeout);
|
||
})]).then(function(container) {
|
||
clearTimeout(timer);
|
||
return container;
|
||
});
|
||
promise['catch'](function() {
|
||
clearTimeout(timer);
|
||
});
|
||
return promise;
|
||
};
|
||
|
||
module.exports = ImageLoader;
|
||
|
||
},{"./dummyimagecontainer":7,"./framecontainer":10,"./imagecontainer":12,"./lineargradientcontainer":14,"./log":15,"./promise":18,"./proxyimagecontainer":20,"./svgcontainer":26,"./svgnodecontainer":27,"./utils":29,"./webkitgradientcontainer":30}],14:[function(require,module,exports){
|
||
var GradientContainer = require('./gradientcontainer');
|
||
var Color = require('./color');
|
||
|
||
var COLOR_STOP_REGEXP = /^(.*)\s*(\d{1,3})?(%|px)?$/;
|
||
|
||
function LinearGradientContainer(imageData) {
|
||
GradientContainer.apply(this, arguments);
|
||
this.type = this.TYPES.LINEAR;
|
||
|
||
var hasDirection = imageData.args[0].match(this.stepRegExp) === null;
|
||
|
||
if (hasDirection) {
|
||
imageData.args[0].split(" ").reverse().forEach(function(position) {
|
||
switch(position) {
|
||
case "left":
|
||
this.x0 = 0;
|
||
this.x1 = 1;
|
||
break;
|
||
case "top":
|
||
this.y0 = 0;
|
||
this.y1 = 1;
|
||
break;
|
||
case "right":
|
||
this.x0 = 1;
|
||
this.x1 = 0;
|
||
break;
|
||
case "bottom":
|
||
this.y0 = 1;
|
||
this.y1 = 0;
|
||
break;
|
||
case "to":
|
||
var y0 = this.y0;
|
||
var x0 = this.x0;
|
||
this.y0 = this.y1;
|
||
this.x0 = this.x1;
|
||
this.x1 = x0;
|
||
this.y1 = y0;
|
||
break;
|
||
}
|
||
}, this);
|
||
} else {
|
||
this.y0 = 0;
|
||
this.y1 = 1;
|
||
}
|
||
|
||
|
||
this.colorStops = imageData.args.slice(hasDirection ? 1 : 0)
|
||
.map(function(colorStop) { return colorStop.match(COLOR_STOP_REGEXP);})
|
||
.filter(function(colorStopMatch) { return !!colorStopMatch;})
|
||
.map(function(colorStopMatch) {
|
||
return {
|
||
color: new Color(colorStopMatch[1]),
|
||
stop: colorStopMatch[3] === "%" ? colorStopMatch[2] / 100 : null
|
||
};
|
||
});
|
||
|
||
if (this.colorStops[0].stop === null) {
|
||
this.colorStops[0].stop = 0;
|
||
}
|
||
|
||
if (this.colorStops[this.colorStops.length - 1].stop === null) {
|
||
this.colorStops[this.colorStops.length - 1].stop = 1;
|
||
}
|
||
|
||
this.colorStops.forEach(function(colorStop, index) {
|
||
if (colorStop.stop === null) {
|
||
this.colorStops.slice(index).some(function(find, count) {
|
||
if (find.stop !== null) {
|
||
colorStop.stop = ((find.stop - this.colorStops[index - 1].stop) / (count + 1)) + this.colorStops[index - 1].stop;
|
||
return true;
|
||
} else {
|
||
return false;
|
||
}
|
||
}, this);
|
||
}
|
||
}, this);
|
||
}
|
||
|
||
LinearGradientContainer.prototype = Object.create(GradientContainer.prototype);
|
||
|
||
LinearGradientContainer.prototype.stepRegExp = /((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/;
|
||
|
||
module.exports = LinearGradientContainer;
|
||
|
||
},{"./color":5,"./gradientcontainer":11}],15:[function(require,module,exports){
|
||
module.exports = function() {
|
||
if (window.html2canvas.logging && window.console && window.console.log) {
|
||
Function.prototype.bind.call(window.console.log, (window.console)).apply(window.console, [(Date.now() - window.html2canvas.start) + "ms", "html2canvas:"].concat([].slice.call(arguments, 0)));
|
||
}
|
||
};
|
||
|
||
},{}],16:[function(require,module,exports){
|
||
var Color = require('./color');
|
||
var utils = require('./utils');
|
||
var getBounds = utils.getBounds;
|
||
var parseBackgrounds = utils.parseBackgrounds;
|
||
var offsetBounds = utils.offsetBounds;
|
||
|
||
function NodeContainer(node, parent) {
|
||
this.node = node;
|
||
this.parent = parent;
|
||
this.stack = null;
|
||
this.bounds = null;
|
||
this.borders = null;
|
||
this.clip = [];
|
||
this.backgroundClip = [];
|
||
this.offsetBounds = null;
|
||
this.visible = null;
|
||
this.computedStyles = null;
|
||
this.colors = {};
|
||
this.styles = {};
|
||
this.backgroundImages = null;
|
||
this.transformData = null;
|
||
this.transformMatrix = null;
|
||
this.isPseudoElement = false;
|
||
this.opacity = null;
|
||
}
|
||
|
||
NodeContainer.prototype.cloneTo = function(stack) {
|
||
stack.visible = this.visible;
|
||
stack.borders = this.borders;
|
||
stack.bounds = this.bounds;
|
||
stack.clip = this.clip;
|
||
stack.backgroundClip = this.backgroundClip;
|
||
stack.computedStyles = this.computedStyles;
|
||
stack.styles = this.styles;
|
||
stack.backgroundImages = this.backgroundImages;
|
||
stack.opacity = this.opacity;
|
||
};
|
||
|
||
NodeContainer.prototype.getOpacity = function() {
|
||
return this.opacity === null ? (this.opacity = this.cssFloat('opacity')) : this.opacity;
|
||
};
|
||
|
||
NodeContainer.prototype.assignStack = function(stack) {
|
||
this.stack = stack;
|
||
stack.children.push(this);
|
||
};
|
||
|
||
NodeContainer.prototype.isElementVisible = function() {
|
||
return this.node.nodeType === Node.TEXT_NODE ? this.parent.visible : (
|
||
this.css('display') !== "none" &&
|
||
this.css('visibility') !== "hidden" &&
|
||
!this.node.hasAttribute("data-html2canvas-ignore") &&
|
||
(this.node.nodeName !== "INPUT" || this.node.getAttribute("type") !== "hidden")
|
||
);
|
||
};
|
||
|
||
NodeContainer.prototype.css = function(attribute) {
|
||
if (!this.computedStyles) {
|
||
this.computedStyles = this.isPseudoElement ? this.parent.computedStyle(this.before ? ":before" : ":after") : this.computedStyle(null);
|
||
}
|
||
|
||
return this.styles[attribute] || (this.styles[attribute] = this.computedStyles[attribute]);
|
||
};
|
||
|
||
NodeContainer.prototype.prefixedCss = function(attribute) {
|
||
var prefixes = ["webkit", "moz", "ms", "o"];
|
||
var value = this.css(attribute);
|
||
if (value === undefined) {
|
||
prefixes.some(function(prefix) {
|
||
value = this.css(prefix + attribute.substr(0, 1).toUpperCase() + attribute.substr(1));
|
||
return value !== undefined;
|
||
}, this);
|
||
}
|
||
return value === undefined ? null : value;
|
||
};
|
||
|
||
NodeContainer.prototype.computedStyle = function(type) {
|
||
return this.node.ownerDocument.defaultView.getComputedStyle(this.node, type);
|
||
};
|
||
|
||
NodeContainer.prototype.cssInt = function(attribute) {
|
||
var value = parseInt(this.css(attribute), 10);
|
||
return (isNaN(value)) ? 0 : value; // borders in old IE are throwing 'medium' for demo.html
|
||
};
|
||
|
||
NodeContainer.prototype.color = function(attribute) {
|
||
return this.colors[attribute] || (this.colors[attribute] = new Color(this.css(attribute)));
|
||
};
|
||
|
||
NodeContainer.prototype.cssFloat = function(attribute) {
|
||
var value = parseFloat(this.css(attribute));
|
||
return (isNaN(value)) ? 0 : value;
|
||
};
|
||
|
||
NodeContainer.prototype.fontWeight = function() {
|
||
var weight = this.css("fontWeight");
|
||
switch(parseInt(weight, 10)){
|
||
case 401:
|
||
weight = "bold";
|
||
break;
|
||
case 400:
|
||
weight = "normal";
|
||
break;
|
||
}
|
||
return weight;
|
||
};
|
||
|
||
NodeContainer.prototype.parseClip = function() {
|
||
var matches = this.css('clip').match(this.CLIP);
|
||
if (matches) {
|
||
return {
|
||
top: parseInt(matches[1], 10),
|
||
right: parseInt(matches[2], 10),
|
||
bottom: parseInt(matches[3], 10),
|
||
left: parseInt(matches[4], 10)
|
||
};
|
||
}
|
||
return null;
|
||
};
|
||
|
||
NodeContainer.prototype.parseBackgroundImages = function() {
|
||
return this.backgroundImages || (this.backgroundImages = parseBackgrounds(this.css("backgroundImage")));
|
||
};
|
||
|
||
NodeContainer.prototype.cssList = function(property, index) {
|
||
var value = (this.css(property) || '').split(',');
|
||
value = value[index || 0] || value[0] || 'auto';
|
||
value = value.trim().split(' ');
|
||
if (value.length === 1) {
|
||
value = [value[0], isPercentage(value[0]) ? 'auto' : value[0]];
|
||
}
|
||
return value;
|
||
};
|
||
|
||
NodeContainer.prototype.parseBackgroundSize = function(bounds, image, index) {
|
||
var size = this.cssList("backgroundSize", index);
|
||
var width, height;
|
||
|
||
if (isPercentage(size[0])) {
|
||
width = bounds.width * parseFloat(size[0]) / 100;
|
||
} else if (/contain|cover/.test(size[0])) {
|
||
var targetRatio = bounds.width / bounds.height, currentRatio = image.width / image.height;
|
||
return (targetRatio < currentRatio ^ size[0] === 'contain') ? {width: bounds.height * currentRatio, height: bounds.height} : {width: bounds.width, height: bounds.width / currentRatio};
|
||
} else {
|
||
width = parseInt(size[0], 10);
|
||
}
|
||
|
||
if (size[0] === 'auto' && size[1] === 'auto') {
|
||
height = image.height;
|
||
} else if (size[1] === 'auto') {
|
||
height = width / image.width * image.height;
|
||
} else if (isPercentage(size[1])) {
|
||
height = bounds.height * parseFloat(size[1]) / 100;
|
||
} else {
|
||
height = parseInt(size[1], 10);
|
||
}
|
||
|
||
if (size[0] === 'auto') {
|
||
width = height / image.height * image.width;
|
||
}
|
||
|
||
return {width: width, height: height};
|
||
};
|
||
|
||
NodeContainer.prototype.parseBackgroundPosition = function(bounds, image, index, backgroundSize) {
|
||
var position = this.cssList('backgroundPosition', index);
|
||
var left, top;
|
||
|
||
if (isPercentage(position[0])){
|
||
left = (bounds.width - (backgroundSize || image).width) * (parseFloat(position[0]) / 100);
|
||
} else {
|
||
left = parseInt(position[0], 10);
|
||
}
|
||
|
||
if (position[1] === 'auto') {
|
||
top = left / image.width * image.height;
|
||
} else if (isPercentage(position[1])){
|
||
top = (bounds.height - (backgroundSize || image).height) * parseFloat(position[1]) / 100;
|
||
} else {
|
||
top = parseInt(position[1], 10);
|
||
}
|
||
|
||
if (position[0] === 'auto') {
|
||
left = top / image.height * image.width;
|
||
}
|
||
|
||
return {left: left, top: top};
|
||
};
|
||
|
||
NodeContainer.prototype.parseBackgroundRepeat = function(index) {
|
||
return this.cssList("backgroundRepeat", index)[0];
|
||
};
|
||
|
||
NodeContainer.prototype.parseTextShadows = function() {
|
||
var textShadow = this.css("textShadow");
|
||
var results = [];
|
||
|
||
if (textShadow && textShadow !== 'none') {
|
||
var shadows = textShadow.match(this.TEXT_SHADOW_PROPERTY);
|
||
for (var i = 0; shadows && (i < shadows.length); i++) {
|
||
var s = shadows[i].match(this.TEXT_SHADOW_VALUES);
|
||
results.push({
|
||
color: new Color(s[0]),
|
||
offsetX: s[1] ? parseFloat(s[1].replace('px', '')) : 0,
|
||
offsetY: s[2] ? parseFloat(s[2].replace('px', '')) : 0,
|
||
blur: s[3] ? s[3].replace('px', '') : 0
|
||
});
|
||
}
|
||
}
|
||
return results;
|
||
};
|
||
|
||
NodeContainer.prototype.parseTransform = function() {
|
||
if (!this.transformData) {
|
||
if (this.hasTransform()) {
|
||
var offset = this.parseBounds();
|
||
var origin = this.prefixedCss("transformOrigin").split(" ").map(removePx).map(asFloat);
|
||
origin[0] += offset.left;
|
||
origin[1] += offset.top;
|
||
this.transformData = {
|
||
origin: origin,
|
||
matrix: this.parseTransformMatrix()
|
||
};
|
||
} else {
|
||
this.transformData = {
|
||
origin: [0, 0],
|
||
matrix: [1, 0, 0, 1, 0, 0]
|
||
};
|
||
}
|
||
}
|
||
return this.transformData;
|
||
};
|
||
|
||
NodeContainer.prototype.parseTransformMatrix = function() {
|
||
if (!this.transformMatrix) {
|
||
var transform = this.prefixedCss("transform");
|
||
var matrix = transform ? parseMatrix(transform.match(this.MATRIX_PROPERTY)) : null;
|
||
this.transformMatrix = matrix ? matrix : [1, 0, 0, 1, 0, 0];
|
||
}
|
||
return this.transformMatrix;
|
||
};
|
||
|
||
NodeContainer.prototype.parseBounds = function() {
|
||
return this.bounds || (this.bounds = this.hasTransform() ? offsetBounds(this.node) : getBounds(this.node));
|
||
};
|
||
|
||
NodeContainer.prototype.hasTransform = function() {
|
||
return this.parseTransformMatrix().join(",") !== "1,0,0,1,0,0" || (this.parent && this.parent.hasTransform());
|
||
};
|
||
|
||
NodeContainer.prototype.getValue = function() {
|
||
var value = this.node.value || "";
|
||
if (this.node.tagName === "SELECT") {
|
||
value = selectionValue(this.node);
|
||
} else if (this.node.type === "password") {
|
||
value = Array(value.length + 1).join('\u2022'); // jshint ignore:line
|
||
}
|
||
return value.length === 0 ? (this.node.placeholder || "") : value;
|
||
};
|
||
|
||
NodeContainer.prototype.MATRIX_PROPERTY = /(matrix|matrix3d)\((.+)\)/;
|
||
NodeContainer.prototype.TEXT_SHADOW_PROPERTY = /((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;
|
||
NodeContainer.prototype.TEXT_SHADOW_VALUES = /(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;
|
||
NodeContainer.prototype.CLIP = /^rect\((\d+)px,? (\d+)px,? (\d+)px,? (\d+)px\)$/;
|
||
|
||
function selectionValue(node) {
|
||
var option = node.options[node.selectedIndex || 0];
|
||
return option ? (option.text || "") : "";
|
||
}
|
||
|
||
function parseMatrix(match) {
|
||
if (match && match[1] === "matrix") {
|
||
return match[2].split(",").map(function(s) {
|
||
return parseFloat(s.trim());
|
||
});
|
||
} else if (match && match[1] === "matrix3d") {
|
||
var matrix3d = match[2].split(",").map(function(s) {
|
||
return parseFloat(s.trim());
|
||
});
|
||
return [matrix3d[0], matrix3d[1], matrix3d[4], matrix3d[5], matrix3d[12], matrix3d[13]];
|
||
}
|
||
}
|
||
|
||
function isPercentage(value) {
|
||
return value.toString().indexOf("%") !== -1;
|
||
}
|
||
|
||
function removePx(str) {
|
||
return str.replace("px", "");
|
||
}
|
||
|
||
function asFloat(str) {
|
||
return parseFloat(str);
|
||
}
|
||
|
||
module.exports = NodeContainer;
|
||
|
||
},{"./color":5,"./utils":29}],17:[function(require,module,exports){
|
||
var log = require('./log');
|
||
var punycode = require('punycode');
|
||
var NodeContainer = require('./nodecontainer');
|
||
var TextContainer = require('./textcontainer');
|
||
var PseudoElementContainer = require('./pseudoelementcontainer');
|
||
var FontMetrics = require('./fontmetrics');
|
||
var Color = require('./color');
|
||
var Promise = require('./promise');
|
||
var StackingContext = require('./stackingcontext');
|
||
var utils = require('./utils');
|
||
var bind = utils.bind;
|
||
var getBounds = utils.getBounds;
|
||
var parseBackgrounds = utils.parseBackgrounds;
|
||
var offsetBounds = utils.offsetBounds;
|
||
|
||
function NodeParser(element, renderer, support, imageLoader, options) {
|
||
log("Starting NodeParser");
|
||
this.renderer = renderer;
|
||
this.options = options;
|
||
this.range = null;
|
||
this.support = support;
|
||
this.renderQueue = [];
|
||
this.stack = new StackingContext(true, 1, element.ownerDocument, null);
|
||
var parent = new NodeContainer(element, null);
|
||
if (options.background) {
|
||
renderer.rectangle(0, 0, renderer.width, renderer.height, new Color(options.background));
|
||
}
|
||
if (element === element.ownerDocument.documentElement) {
|
||
// http://www.w3.org/TR/css3-background/#special-backgrounds
|
||
var canvasBackground = new NodeContainer(parent.color('backgroundColor').isTransparent() ? element.ownerDocument.body : element.ownerDocument.documentElement, null);
|
||
renderer.rectangle(0, 0, renderer.width, renderer.height, canvasBackground.color('backgroundColor'));
|
||
}
|
||
parent.visibile = parent.isElementVisible();
|
||
this.createPseudoHideStyles(element.ownerDocument);
|
||
this.disableAnimations(element.ownerDocument);
|
||
this.nodes = flatten([parent].concat(this.getChildren(parent)).filter(function(container) {
|
||
return container.visible = container.isElementVisible();
|
||
}).map(this.getPseudoElements, this));
|
||
this.fontMetrics = new FontMetrics();
|
||
log("Fetched nodes, total:", this.nodes.length);
|
||
log("Calculate overflow clips");
|
||
this.calculateOverflowClips();
|
||
log("Start fetching images");
|
||
this.images = imageLoader.fetch(this.nodes.filter(isElement));
|
||
this.ready = this.images.ready.then(bind(function() {
|
||
log("Images loaded, starting parsing");
|
||
log("Creating stacking contexts");
|
||
this.createStackingContexts();
|
||
log("Sorting stacking contexts");
|
||
this.sortStackingContexts(this.stack);
|
||
this.parse(this.stack);
|
||
log("Render queue created with " + this.renderQueue.length + " items");
|
||
return new Promise(bind(function(resolve) {
|
||
if (!options.async) {
|
||
this.renderQueue.forEach(this.paint, this);
|
||
resolve();
|
||
} else if (typeof(options.async) === "function") {
|
||
options.async.call(this, this.renderQueue, resolve);
|
||
} else if (this.renderQueue.length > 0){
|
||
this.renderIndex = 0;
|
||
this.asyncRenderer(this.renderQueue, resolve);
|
||
} else {
|
||
resolve();
|
||
}
|
||
}, this));
|
||
}, this));
|
||
}
|
||
|
||
NodeParser.prototype.calculateOverflowClips = function() {
|
||
this.nodes.forEach(function(container) {
|
||
if (isElement(container)) {
|
||
if (isPseudoElement(container)) {
|
||
container.appendToDOM();
|
||
}
|
||
container.borders = this.parseBorders(container);
|
||
var clip = (container.css('overflow') === "hidden") ? [container.borders.clip] : [];
|
||
var cssClip = container.parseClip();
|
||
if (cssClip && ["absolute", "fixed"].indexOf(container.css('position')) !== -1) {
|
||
clip.push([["rect",
|
||
container.bounds.left + cssClip.left,
|
||
container.bounds.top + cssClip.top,
|
||
cssClip.right - cssClip.left,
|
||
cssClip.bottom - cssClip.top
|
||
]]);
|
||
}
|
||
container.clip = hasParentClip(container) ? container.parent.clip.concat(clip) : clip;
|
||
container.backgroundClip = (container.css('overflow') !== "hidden") ? container.clip.concat([container.borders.clip]) : container.clip;
|
||
if (isPseudoElement(container)) {
|
||
container.cleanDOM();
|
||
}
|
||
} else if (isTextNode(container)) {
|
||
container.clip = hasParentClip(container) ? container.parent.clip : [];
|
||
}
|
||
if (!isPseudoElement(container)) {
|
||
container.bounds = null;
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
function hasParentClip(container) {
|
||
return container.parent && container.parent.clip.length;
|
||
}
|
||
|
||
NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
|
||
asyncTimer = asyncTimer || Date.now();
|
||
this.paint(queue[this.renderIndex++]);
|
||
if (queue.length === this.renderIndex) {
|
||
resolve();
|
||
} else if (asyncTimer + 20 > Date.now()) {
|
||
this.asyncRenderer(queue, resolve, asyncTimer);
|
||
} else {
|
||
setTimeout(bind(function() {
|
||
this.asyncRenderer(queue, resolve);
|
||
}, this), 0);
|
||
}
|
||
};
|
||
|
||
NodeParser.prototype.createPseudoHideStyles = function(document) {
|
||
this.createStyles(document, '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + ':before { content: "" !important; display: none !important; }' +
|
||
'.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER + ':after { content: "" !important; display: none !important; }');
|
||
};
|
||
|
||
NodeParser.prototype.disableAnimations = function(document) {
|
||
this.createStyles(document, '* { -webkit-animation: none !important; -moz-animation: none !important; -o-animation: none !important; animation: none !important; ' +
|
||
'-webkit-transition: none !important; -moz-transition: none !important; -o-transition: none !important; transition: none !important;}');
|
||
};
|
||
|
||
NodeParser.prototype.createStyles = function(document, styles) {
|
||
var hidePseudoElements = document.createElement('style');
|
||
hidePseudoElements.innerHTML = styles;
|
||
document.body.appendChild(hidePseudoElements);
|
||
};
|
||
|
||
NodeParser.prototype.getPseudoElements = function(container) {
|
||
var nodes = [[container]];
|
||
if (container.node.nodeType === Node.ELEMENT_NODE) {
|
||
var before = this.getPseudoElement(container, ":before");
|
||
var after = this.getPseudoElement(container, ":after");
|
||
|
||
if (before) {
|
||
nodes.push(before);
|
||
}
|
||
|
||
if (after) {
|
||
nodes.push(after);
|
||
}
|
||
}
|
||
return flatten(nodes);
|
||
};
|
||
|
||
function toCamelCase(str) {
|
||
return str.replace(/(\-[a-z])/g, function(match){
|
||
return match.toUpperCase().replace('-','');
|
||
});
|
||
}
|
||
|
||
NodeParser.prototype.getPseudoElement = function(container, type) {
|
||
var style = container.computedStyle(type);
|
||
if(!style || !style.content || style.content === "none" || style.content === "-moz-alt-content" || style.display === "none") {
|
||
return null;
|
||
}
|
||
|
||
var content = stripQuotes(style.content);
|
||
var isImage = content.substr(0, 3) === 'url';
|
||
var pseudoNode = document.createElement(isImage ? 'img' : 'html2canvaspseudoelement');
|
||
var pseudoContainer = new PseudoElementContainer(pseudoNode, container, type);
|
||
|
||
for (var i = style.length-1; i >= 0; i--) {
|
||
var property = toCamelCase(style.item(i));
|
||
pseudoNode.style[property] = style[property];
|
||
}
|
||
|
||
pseudoNode.className = PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + " " + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER;
|
||
|
||
if (isImage) {
|
||
pseudoNode.src = parseBackgrounds(content)[0].args[0];
|
||
return [pseudoContainer];
|
||
} else {
|
||
var text = document.createTextNode(content);
|
||
pseudoNode.appendChild(text);
|
||
return [pseudoContainer, new TextContainer(text, pseudoContainer)];
|
||
}
|
||
};
|
||
|
||
|
||
NodeParser.prototype.getChildren = function(parentContainer) {
|
||
return flatten([].filter.call(parentContainer.node.childNodes, renderableNode).map(function(node) {
|
||
var container = [node.nodeType === Node.TEXT_NODE ? new TextContainer(node, parentContainer) : new NodeContainer(node, parentContainer)].filter(nonIgnoredElement);
|
||
return node.nodeType === Node.ELEMENT_NODE && container.length && node.tagName !== "TEXTAREA" ? (container[0].isElementVisible() ? container.concat(this.getChildren(container[0])) : []) : container;
|
||
}, this));
|
||
};
|
||
|
||
NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
|
||
var stack = new StackingContext(hasOwnStacking, container.getOpacity(), container.node, container.parent);
|
||
container.cloneTo(stack);
|
||
var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
|
||
parentStack.contexts.push(stack);
|
||
container.stack = stack;
|
||
};
|
||
|
||
NodeParser.prototype.createStackingContexts = function() {
|
||
this.nodes.forEach(function(container) {
|
||
if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container) || container.hasTransform())) {
|
||
this.newStackingContext(container, true);
|
||
} else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
|
||
this.newStackingContext(container, false);
|
||
} else {
|
||
container.assignStack(container.parent.stack);
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.isBodyWithTransparentRoot = function(container) {
|
||
return container.node.nodeName === "BODY" && container.parent.color('backgroundColor').isTransparent();
|
||
};
|
||
|
||
NodeParser.prototype.isRootElement = function(container) {
|
||
return container.parent === null;
|
||
};
|
||
|
||
NodeParser.prototype.sortStackingContexts = function(stack) {
|
||
stack.contexts.sort(zIndexSort(stack.contexts.slice(0)));
|
||
stack.contexts.forEach(this.sortStackingContexts, this);
|
||
};
|
||
|
||
NodeParser.prototype.parseTextBounds = function(container) {
|
||
return function(text, index, textList) {
|
||
if (container.parent.css("textDecoration").substr(0, 4) !== "none" || text.trim().length !== 0) {
|
||
if (this.support.rangeBounds && !container.parent.hasTransform()) {
|
||
var offset = textList.slice(0, index).join("").length;
|
||
return this.getRangeBounds(container.node, offset, text.length);
|
||
} else if (container.node && typeof(container.node.data) === "string") {
|
||
var replacementNode = container.node.splitText(text.length);
|
||
var bounds = this.getWrapperBounds(container.node, container.parent.hasTransform());
|
||
container.node = replacementNode;
|
||
return bounds;
|
||
}
|
||
} else if(!this.support.rangeBounds || container.parent.hasTransform()){
|
||
container.node = container.node.splitText(text.length);
|
||
}
|
||
return {};
|
||
};
|
||
};
|
||
|
||
NodeParser.prototype.getWrapperBounds = function(node, transform) {
|
||
var wrapper = node.ownerDocument.createElement('html2canvaswrapper');
|
||
var parent = node.parentNode,
|
||
backupText = node.cloneNode(true);
|
||
|
||
wrapper.appendChild(node.cloneNode(true));
|
||
parent.replaceChild(wrapper, node);
|
||
var bounds = transform ? offsetBounds(wrapper) : getBounds(wrapper);
|
||
parent.replaceChild(backupText, wrapper);
|
||
return bounds;
|
||
};
|
||
|
||
NodeParser.prototype.getRangeBounds = function(node, offset, length) {
|
||
var range = this.range || (this.range = node.ownerDocument.createRange());
|
||
range.setStart(node, offset);
|
||
range.setEnd(node, offset + length);
|
||
return range.getBoundingClientRect();
|
||
};
|
||
|
||
function ClearTransform() {}
|
||
|
||
NodeParser.prototype.parse = function(stack) {
|
||
// http://www.w3.org/TR/CSS21/visuren.html#z-index
|
||
var negativeZindex = stack.contexts.filter(negativeZIndex); // 2. the child stacking contexts with negative stack levels (most negative first).
|
||
var descendantElements = stack.children.filter(isElement);
|
||
var descendantNonFloats = descendantElements.filter(not(isFloating));
|
||
var nonInlineNonPositionedDescendants = descendantNonFloats.filter(not(isPositioned)).filter(not(inlineLevel)); // 3 the in-flow, non-inline-level, non-positioned descendants.
|
||
var nonPositionedFloats = descendantElements.filter(not(isPositioned)).filter(isFloating); // 4. the non-positioned floats.
|
||
var inFlow = descendantNonFloats.filter(not(isPositioned)).filter(inlineLevel); // 5. the in-flow, inline-level, non-positioned descendants, including inline tables and inline blocks.
|
||
var stackLevel0 = stack.contexts.concat(descendantNonFloats.filter(isPositioned)).filter(zIndex0); // 6. the child stacking contexts with stack level 0 and the positioned descendants with stack level 0.
|
||
var text = stack.children.filter(isTextNode).filter(hasText);
|
||
var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
|
||
negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
|
||
.concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
|
||
this.renderQueue.push(container);
|
||
if (isStackingContext(container)) {
|
||
this.parse(container);
|
||
this.renderQueue.push(new ClearTransform());
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.paint = function(container) {
|
||
try {
|
||
if (container instanceof ClearTransform) {
|
||
this.renderer.ctx.restore();
|
||
} else if (isTextNode(container)) {
|
||
if (isPseudoElement(container.parent)) {
|
||
container.parent.appendToDOM();
|
||
}
|
||
this.paintText(container);
|
||
if (isPseudoElement(container.parent)) {
|
||
container.parent.cleanDOM();
|
||
}
|
||
} else {
|
||
this.paintNode(container);
|
||
}
|
||
} catch(e) {
|
||
log(e);
|
||
if (this.options.strict) {
|
||
throw e;
|
||
}
|
||
}
|
||
};
|
||
|
||
NodeParser.prototype.paintNode = function(container) {
|
||
if (isStackingContext(container)) {
|
||
this.renderer.setOpacity(container.opacity);
|
||
this.renderer.ctx.save();
|
||
if (container.hasTransform()) {
|
||
this.renderer.setTransform(container.parseTransform());
|
||
}
|
||
}
|
||
|
||
if (container.node.nodeName === "INPUT" && container.node.type === "checkbox") {
|
||
this.paintCheckbox(container);
|
||
} else if (container.node.nodeName === "INPUT" && container.node.type === "radio") {
|
||
this.paintRadio(container);
|
||
} else {
|
||
this.paintElement(container);
|
||
}
|
||
};
|
||
|
||
NodeParser.prototype.paintElement = function(container) {
|
||
var bounds = container.parseBounds();
|
||
this.renderer.clip(container.backgroundClip, function() {
|
||
this.renderer.renderBackground(container, bounds, container.borders.borders.map(getWidth));
|
||
}, this);
|
||
|
||
this.renderer.clip(container.clip, function() {
|
||
this.renderer.renderBorders(container.borders.borders);
|
||
}, this);
|
||
|
||
this.renderer.clip(container.backgroundClip, function() {
|
||
switch (container.node.nodeName) {
|
||
case "svg":
|
||
case "IFRAME":
|
||
var imgContainer = this.images.get(container.node);
|
||
if (imgContainer) {
|
||
this.renderer.renderImage(container, bounds, container.borders, imgContainer);
|
||
} else {
|
||
log("Error loading <" + container.node.nodeName + ">", container.node);
|
||
}
|
||
break;
|
||
case "IMG":
|
||
var imageContainer = this.images.get(container.node.src);
|
||
if (imageContainer) {
|
||
this.renderer.renderImage(container, bounds, container.borders, imageContainer);
|
||
} else {
|
||
log("Error loading <img>", container.node.src);
|
||
}
|
||
break;
|
||
case "CANVAS":
|
||
this.renderer.renderImage(container, bounds, container.borders, {image: container.node});
|
||
break;
|
||
case "SELECT":
|
||
case "INPUT":
|
||
case "TEXTAREA":
|
||
this.paintFormValue(container);
|
||
break;
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.paintCheckbox = function(container) {
|
||
var b = container.parseBounds();
|
||
|
||
var size = Math.min(b.width, b.height);
|
||
var bounds = {width: size - 1, height: size - 1, top: b.top, left: b.left};
|
||
var r = [3, 3];
|
||
var radius = [r, r, r, r];
|
||
var borders = [1,1,1,1].map(function(w) {
|
||
return {color: new Color('#A5A5A5'), width: w};
|
||
});
|
||
|
||
var borderPoints = calculateCurvePoints(bounds, radius, borders);
|
||
|
||
this.renderer.clip(container.backgroundClip, function() {
|
||
this.renderer.rectangle(bounds.left + 1, bounds.top + 1, bounds.width - 2, bounds.height - 2, new Color("#DEDEDE"));
|
||
this.renderer.renderBorders(calculateBorders(borders, bounds, borderPoints, radius));
|
||
if (container.node.checked) {
|
||
this.renderer.font(new Color('#424242'), 'normal', 'normal', 'bold', (size - 3) + "px", 'arial');
|
||
this.renderer.text("\u2714", bounds.left + size / 6, bounds.top + size - 1);
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.paintRadio = function(container) {
|
||
var bounds = container.parseBounds();
|
||
|
||
var size = Math.min(bounds.width, bounds.height) - 2;
|
||
|
||
this.renderer.clip(container.backgroundClip, function() {
|
||
this.renderer.circleStroke(bounds.left + 1, bounds.top + 1, size, new Color('#DEDEDE'), 1, new Color('#A5A5A5'));
|
||
if (container.node.checked) {
|
||
this.renderer.circle(Math.ceil(bounds.left + size / 4) + 1, Math.ceil(bounds.top + size / 4) + 1, Math.floor(size / 2), new Color('#424242'));
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.paintFormValue = function(container) {
|
||
var value = container.getValue();
|
||
if (value.length > 0) {
|
||
var document = container.node.ownerDocument;
|
||
var wrapper = document.createElement('html2canvaswrapper');
|
||
var properties = ['lineHeight', 'textAlign', 'fontFamily', 'fontWeight', 'fontSize', 'color',
|
||
'paddingLeft', 'paddingTop', 'paddingRight', 'paddingBottom',
|
||
'width', 'height', 'borderLeftStyle', 'borderTopStyle', 'borderLeftWidth', 'borderTopWidth',
|
||
'boxSizing', 'whiteSpace', 'wordWrap'];
|
||
|
||
properties.forEach(function(property) {
|
||
try {
|
||
wrapper.style[property] = container.css(property);
|
||
} catch(e) {
|
||
// Older IE has issues with "border"
|
||
log("html2canvas: Parse: Exception caught in renderFormValue: " + e.message);
|
||
}
|
||
});
|
||
var bounds = container.parseBounds();
|
||
wrapper.style.position = "fixed";
|
||
wrapper.style.left = bounds.left + "px";
|
||
wrapper.style.top = bounds.top + "px";
|
||
wrapper.textContent = value;
|
||
document.body.appendChild(wrapper);
|
||
this.paintText(new TextContainer(wrapper.firstChild, container));
|
||
document.body.removeChild(wrapper);
|
||
}
|
||
};
|
||
|
||
NodeParser.prototype.paintText = function(container) {
|
||
container.applyTextTransform();
|
||
var characters = punycode.ucs2.decode(container.node.data);
|
||
var textList = (!this.options.letterRendering || noLetterSpacing(container)) && !hasUnicode(container.node.data) ? getWords(characters) : characters.map(function(character) {
|
||
return punycode.ucs2.encode([character]);
|
||
});
|
||
|
||
var weight = container.parent.fontWeight();
|
||
var size = container.parent.css('fontSize');
|
||
var family = container.parent.css('fontFamily');
|
||
var shadows = container.parent.parseTextShadows();
|
||
|
||
this.renderer.font(container.parent.color('color'), container.parent.css('fontStyle'), container.parent.css('fontVariant'), weight, size, family);
|
||
if (shadows.length) {
|
||
// TODO: support multiple text shadows
|
||
this.renderer.fontShadow(shadows[0].color, shadows[0].offsetX, shadows[0].offsetY, shadows[0].blur);
|
||
} else {
|
||
this.renderer.clearShadow();
|
||
}
|
||
|
||
this.renderer.clip(container.parent.clip, function() {
|
||
textList.map(this.parseTextBounds(container), this).forEach(function(bounds, index) {
|
||
if (bounds) {
|
||
this.renderer.text(textList[index], bounds.left, bounds.bottom);
|
||
this.renderTextDecoration(container.parent, bounds, this.fontMetrics.getMetrics(family, size));
|
||
}
|
||
}, this);
|
||
}, this);
|
||
};
|
||
|
||
NodeParser.prototype.renderTextDecoration = function(container, bounds, metrics) {
|
||
switch(container.css("textDecoration").split(" ")[0]) {
|
||
case "underline":
|
||
// Draws a line at the baseline of the font
|
||
// TODO As some browsers display the line as more than 1px if the font-size is big, need to take that into account both in position and size
|
||
this.renderer.rectangle(bounds.left, Math.round(bounds.top + metrics.baseline + metrics.lineWidth), bounds.width, 1, container.color("color"));
|
||
break;
|
||
case "overline":
|
||
this.renderer.rectangle(bounds.left, Math.round(bounds.top), bounds.width, 1, container.color("color"));
|
||
break;
|
||
case "line-through":
|
||
// TODO try and find exact position for line-through
|
||
this.renderer.rectangle(bounds.left, Math.ceil(bounds.top + metrics.middle + metrics.lineWidth), bounds.width, 1, container.color("color"));
|
||
break;
|
||
}
|
||
};
|
||
|
||
var borderColorTransforms = {
|
||
inset: [
|
||
["darken", 0.60],
|
||
["darken", 0.10],
|
||
["darken", 0.10],
|
||
["darken", 0.60]
|
||
]
|
||
};
|
||
|
||
NodeParser.prototype.parseBorders = function(container) {
|
||
var nodeBounds = container.parseBounds();
|
||
var radius = getBorderRadiusData(container);
|
||
var borders = ["Top", "Right", "Bottom", "Left"].map(function(side, index) {
|
||
var style = container.css('border' + side + 'Style');
|
||
var color = container.color('border' + side + 'Color');
|
||
if (style === "inset" && color.isBlack()) {
|
||
color = new Color([255, 255, 255, color.a]); // this is wrong, but
|
||
}
|
||
var colorTransform = borderColorTransforms[style] ? borderColorTransforms[style][index] : null;
|
||
return {
|
||
width: container.cssInt('border' + side + 'Width'),
|
||
color: colorTransform ? color[colorTransform[0]](colorTransform[1]) : color,
|
||
args: null
|
||
};
|
||
});
|
||
var borderPoints = calculateCurvePoints(nodeBounds, radius, borders);
|
||
|
||
return {
|
||
clip: this.parseBackgroundClip(container, borderPoints, borders, radius, nodeBounds),
|
||
borders: calculateBorders(borders, nodeBounds, borderPoints, radius)
|
||
};
|
||
};
|
||
|
||
function calculateBorders(borders, nodeBounds, borderPoints, radius) {
|
||
return borders.map(function(border, borderSide) {
|
||
if (border.width > 0) {
|
||
var bx = nodeBounds.left;
|
||
var by = nodeBounds.top;
|
||
var bw = nodeBounds.width;
|
||
var bh = nodeBounds.height - (borders[2].width);
|
||
|
||
switch(borderSide) {
|
||
case 0:
|
||
// top border
|
||
bh = borders[0].width;
|
||
border.args = drawSide({
|
||
c1: [bx, by],
|
||
c2: [bx + bw, by],
|
||
c3: [bx + bw - borders[1].width, by + bh],
|
||
c4: [bx + borders[3].width, by + bh]
|
||
}, radius[0], radius[1],
|
||
borderPoints.topLeftOuter, borderPoints.topLeftInner, borderPoints.topRightOuter, borderPoints.topRightInner);
|
||
break;
|
||
case 1:
|
||
// right border
|
||
bx = nodeBounds.left + nodeBounds.width - (borders[1].width);
|
||
bw = borders[1].width;
|
||
|
||
border.args = drawSide({
|
||
c1: [bx + bw, by],
|
||
c2: [bx + bw, by + bh + borders[2].width],
|
||
c3: [bx, by + bh],
|
||
c4: [bx, by + borders[0].width]
|
||
}, radius[1], radius[2],
|
||
borderPoints.topRightOuter, borderPoints.topRightInner, borderPoints.bottomRightOuter, borderPoints.bottomRightInner);
|
||
break;
|
||
case 2:
|
||
// bottom border
|
||
by = (by + nodeBounds.height) - (borders[2].width);
|
||
bh = borders[2].width;
|
||
border.args = drawSide({
|
||
c1: [bx + bw, by + bh],
|
||
c2: [bx, by + bh],
|
||
c3: [bx + borders[3].width, by],
|
||
c4: [bx + bw - borders[3].width, by]
|
||
}, radius[2], radius[3],
|
||
borderPoints.bottomRightOuter, borderPoints.bottomRightInner, borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner);
|
||
break;
|
||
case 3:
|
||
// left border
|
||
bw = borders[3].width;
|
||
border.args = drawSide({
|
||
c1: [bx, by + bh + borders[2].width],
|
||
c2: [bx, by],
|
||
c3: [bx + bw, by + borders[0].width],
|
||
c4: [bx + bw, by + bh]
|
||
}, radius[3], radius[0],
|
||
borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner, borderPoints.topLeftOuter, borderPoints.topLeftInner);
|
||
break;
|
||
}
|
||
}
|
||
return border;
|
||
});
|
||
}
|
||
|
||
NodeParser.prototype.parseBackgroundClip = function(container, borderPoints, borders, radius, bounds) {
|
||
var backgroundClip = container.css('backgroundClip'),
|
||
borderArgs = [];
|
||
|
||
switch(backgroundClip) {
|
||
case "content-box":
|
||
case "padding-box":
|
||
parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftInner, borderPoints.topRightInner, bounds.left + borders[3].width, bounds.top + borders[0].width);
|
||
parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightInner, borderPoints.bottomRightInner, bounds.left + bounds.width - borders[1].width, bounds.top + borders[0].width);
|
||
parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightInner, borderPoints.bottomLeftInner, bounds.left + bounds.width - borders[1].width, bounds.top + bounds.height - borders[2].width);
|
||
parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftInner, borderPoints.topLeftInner, bounds.left + borders[3].width, bounds.top + bounds.height - borders[2].width);
|
||
break;
|
||
|
||
default:
|
||
parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftOuter, borderPoints.topRightOuter, bounds.left, bounds.top);
|
||
parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightOuter, borderPoints.bottomRightOuter, bounds.left + bounds.width, bounds.top);
|
||
parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightOuter, borderPoints.bottomLeftOuter, bounds.left + bounds.width, bounds.top + bounds.height);
|
||
parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftOuter, borderPoints.topLeftOuter, bounds.left, bounds.top + bounds.height);
|
||
break;
|
||
}
|
||
|
||
return borderArgs;
|
||
};
|
||
|
||
function getCurvePoints(x, y, r1, r2) {
|
||
var kappa = 4 * ((Math.sqrt(2) - 1) / 3);
|
||
var ox = (r1) * kappa, // control point offset horizontal
|
||
oy = (r2) * kappa, // control point offset vertical
|
||
xm = x + r1, // x-middle
|
||
ym = y + r2; // y-middle
|
||
return {
|
||
topLeft: bezierCurve({x: x, y: ym}, {x: x, y: ym - oy}, {x: xm - ox, y: y}, {x: xm, y: y}),
|
||
topRight: bezierCurve({x: x, y: y}, {x: x + ox,y: y}, {x: xm, y: ym - oy}, {x: xm, y: ym}),
|
||
bottomRight: bezierCurve({x: xm, y: y}, {x: xm, y: y + oy}, {x: x + ox, y: ym}, {x: x, y: ym}),
|
||
bottomLeft: bezierCurve({x: xm, y: ym}, {x: xm - ox, y: ym}, {x: x, y: y + oy}, {x: x, y:y})
|
||
};
|
||
}
|
||
|
||
function calculateCurvePoints(bounds, borderRadius, borders) {
|
||
var x = bounds.left,
|
||
y = bounds.top,
|
||
width = bounds.width,
|
||
height = bounds.height,
|
||
|
||
tlh = borderRadius[0][0] < width / 2 ? borderRadius[0][0] : width / 2,
|
||
tlv = borderRadius[0][1] < height / 2 ? borderRadius[0][1] : height / 2,
|
||
trh = borderRadius[1][0] < width / 2 ? borderRadius[1][0] : width / 2,
|
||
trv = borderRadius[1][1] < height / 2 ? borderRadius[1][1] : height / 2,
|
||
brh = borderRadius[2][0] < width / 2 ? borderRadius[2][0] : width / 2,
|
||
brv = borderRadius[2][1] < height / 2 ? borderRadius[2][1] : height / 2,
|
||
blh = borderRadius[3][0] < width / 2 ? borderRadius[3][0] : width / 2,
|
||
blv = borderRadius[3][1] < height / 2 ? borderRadius[3][1] : height / 2;
|
||
|
||
var topWidth = width - trh,
|
||
rightHeight = height - brv,
|
||
bottomWidth = width - brh,
|
||
leftHeight = height - blv;
|
||
|
||
return {
|
||
topLeftOuter: getCurvePoints(x, y, tlh, tlv).topLeft.subdivide(0.5),
|
||
topLeftInner: getCurvePoints(x + borders[3].width, y + borders[0].width, Math.max(0, tlh - borders[3].width), Math.max(0, tlv - borders[0].width)).topLeft.subdivide(0.5),
|
||
topRightOuter: getCurvePoints(x + topWidth, y, trh, trv).topRight.subdivide(0.5),
|
||
topRightInner: getCurvePoints(x + Math.min(topWidth, width + borders[3].width), y + borders[0].width, (topWidth > width + borders[3].width) ? 0 :trh - borders[3].width, trv - borders[0].width).topRight.subdivide(0.5),
|
||
bottomRightOuter: getCurvePoints(x + bottomWidth, y + rightHeight, brh, brv).bottomRight.subdivide(0.5),
|
||
bottomRightInner: getCurvePoints(x + Math.min(bottomWidth, width - borders[3].width), y + Math.min(rightHeight, height + borders[0].width), Math.max(0, brh - borders[1].width), brv - borders[2].width).bottomRight.subdivide(0.5),
|
||
bottomLeftOuter: getCurvePoints(x, y + leftHeight, blh, blv).bottomLeft.subdivide(0.5),
|
||
bottomLeftInner: getCurvePoints(x + borders[3].width, y + leftHeight, Math.max(0, blh - borders[3].width), blv - borders[2].width).bottomLeft.subdivide(0.5)
|
||
};
|
||
}
|
||
|
||
function bezierCurve(start, startControl, endControl, end) {
|
||
var lerp = function (a, b, t) {
|
||
return {
|
||
x: a.x + (b.x - a.x) * t,
|
||
y: a.y + (b.y - a.y) * t
|
||
};
|
||
};
|
||
|
||
return {
|
||
start: start,
|
||
startControl: startControl,
|
||
endControl: endControl,
|
||
end: end,
|
||
subdivide: function(t) {
|
||
var ab = lerp(start, startControl, t),
|
||
bc = lerp(startControl, endControl, t),
|
||
cd = lerp(endControl, end, t),
|
||
abbc = lerp(ab, bc, t),
|
||
bccd = lerp(bc, cd, t),
|
||
dest = lerp(abbc, bccd, t);
|
||
return [bezierCurve(start, ab, abbc, dest), bezierCurve(dest, bccd, cd, end)];
|
||
},
|
||
curveTo: function(borderArgs) {
|
||
borderArgs.push(["bezierCurve", startControl.x, startControl.y, endControl.x, endControl.y, end.x, end.y]);
|
||
},
|
||
curveToReversed: function(borderArgs) {
|
||
borderArgs.push(["bezierCurve", endControl.x, endControl.y, startControl.x, startControl.y, start.x, start.y]);
|
||
}
|
||
};
|
||
}
|
||
|
||
function drawSide(borderData, radius1, radius2, outer1, inner1, outer2, inner2) {
|
||
var borderArgs = [];
|
||
|
||
if (radius1[0] > 0 || radius1[1] > 0) {
|
||
borderArgs.push(["line", outer1[1].start.x, outer1[1].start.y]);
|
||
outer1[1].curveTo(borderArgs);
|
||
} else {
|
||
borderArgs.push([ "line", borderData.c1[0], borderData.c1[1]]);
|
||
}
|
||
|
||
if (radius2[0] > 0 || radius2[1] > 0) {
|
||
borderArgs.push(["line", outer2[0].start.x, outer2[0].start.y]);
|
||
outer2[0].curveTo(borderArgs);
|
||
borderArgs.push(["line", inner2[0].end.x, inner2[0].end.y]);
|
||
inner2[0].curveToReversed(borderArgs);
|
||
} else {
|
||
borderArgs.push(["line", borderData.c2[0], borderData.c2[1]]);
|
||
borderArgs.push(["line", borderData.c3[0], borderData.c3[1]]);
|
||
}
|
||
|
||
if (radius1[0] > 0 || radius1[1] > 0) {
|
||
borderArgs.push(["line", inner1[1].end.x, inner1[1].end.y]);
|
||
inner1[1].curveToReversed(borderArgs);
|
||
} else {
|
||
borderArgs.push(["line", borderData.c4[0], borderData.c4[1]]);
|
||
}
|
||
|
||
return borderArgs;
|
||
}
|
||
|
||
function parseCorner(borderArgs, radius1, radius2, corner1, corner2, x, y) {
|
||
if (radius1[0] > 0 || radius1[1] > 0) {
|
||
borderArgs.push(["line", corner1[0].start.x, corner1[0].start.y]);
|
||
corner1[0].curveTo(borderArgs);
|
||
corner1[1].curveTo(borderArgs);
|
||
} else {
|
||
borderArgs.push(["line", x, y]);
|
||
}
|
||
|
||
if (radius2[0] > 0 || radius2[1] > 0) {
|
||
borderArgs.push(["line", corner2[0].start.x, corner2[0].start.y]);
|
||
}
|
||
}
|
||
|
||
function negativeZIndex(container) {
|
||
return container.cssInt("zIndex") < 0;
|
||
}
|
||
|
||
function positiveZIndex(container) {
|
||
return container.cssInt("zIndex") > 0;
|
||
}
|
||
|
||
function zIndex0(container) {
|
||
return container.cssInt("zIndex") === 0;
|
||
}
|
||
|
||
function inlineLevel(container) {
|
||
return ["inline", "inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
|
||
}
|
||
|
||
function isStackingContext(container) {
|
||
return (container instanceof StackingContext);
|
||
}
|
||
|
||
function hasText(container) {
|
||
return container.node.data.trim().length > 0;
|
||
}
|
||
|
||
function noLetterSpacing(container) {
|
||
return (/^(normal|none|0px)$/.test(container.parent.css("letterSpacing")));
|
||
}
|
||
|
||
function getBorderRadiusData(container) {
|
||
return ["TopLeft", "TopRight", "BottomRight", "BottomLeft"].map(function(side) {
|
||
var value = container.css('border' + side + 'Radius');
|
||
var arr = value.split(" ");
|
||
if (arr.length <= 1) {
|
||
arr[1] = arr[0];
|
||
}
|
||
return arr.map(asInt);
|
||
});
|
||
}
|
||
|
||
function renderableNode(node) {
|
||
return (node.nodeType === Node.TEXT_NODE || node.nodeType === Node.ELEMENT_NODE);
|
||
}
|
||
|
||
function isPositionedForStacking(container) {
|
||
var position = container.css("position");
|
||
var zIndex = (["absolute", "relative", "fixed"].indexOf(position) !== -1) ? container.css("zIndex") : "auto";
|
||
return zIndex !== "auto";
|
||
}
|
||
|
||
function isPositioned(container) {
|
||
return container.css("position") !== "static";
|
||
}
|
||
|
||
function isFloating(container) {
|
||
return container.css("float") !== "none";
|
||
}
|
||
|
||
function isInlineBlock(container) {
|
||
return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
|
||
}
|
||
|
||
function not(callback) {
|
||
var context = this;
|
||
return function() {
|
||
return !callback.apply(context, arguments);
|
||
};
|
||
}
|
||
|
||
function isElement(container) {
|
||
return container.node.nodeType === Node.ELEMENT_NODE;
|
||
}
|
||
|
||
function isPseudoElement(container) {
|
||
return container.isPseudoElement === true;
|
||
}
|
||
|
||
function isTextNode(container) {
|
||
return container.node.nodeType === Node.TEXT_NODE;
|
||
}
|
||
|
||
function zIndexSort(contexts) {
|
||
return function(a, b) {
|
||
return (a.cssInt("zIndex") + (contexts.indexOf(a) / contexts.length)) - (b.cssInt("zIndex") + (contexts.indexOf(b) / contexts.length));
|
||
};
|
||
}
|
||
|
||
function hasOpacity(container) {
|
||
return container.getOpacity() < 1;
|
||
}
|
||
|
||
function asInt(value) {
|
||
return parseInt(value, 10);
|
||
}
|
||
|
||
function getWidth(border) {
|
||
return border.width;
|
||
}
|
||
|
||
function nonIgnoredElement(nodeContainer) {
|
||
return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR", "OPTION"].indexOf(nodeContainer.node.nodeName) === -1);
|
||
}
|
||
|
||
function flatten(arrays) {
|
||
return [].concat.apply([], arrays);
|
||
}
|
||
|
||
function stripQuotes(content) {
|
||
var first = content.substr(0, 1);
|
||
return (first === content.substr(content.length - 1) && first.match(/'|"/)) ? content.substr(1, content.length - 2) : content;
|
||
}
|
||
|
||
function getWords(characters) {
|
||
var words = [], i = 0, onWordBoundary = false, word;
|
||
while(characters.length) {
|
||
if (isWordBoundary(characters[i]) === onWordBoundary) {
|
||
word = characters.splice(0, i);
|
||
if (word.length) {
|
||
words.push(punycode.ucs2.encode(word));
|
||
}
|
||
onWordBoundary =! onWordBoundary;
|
||
i = 0;
|
||
} else {
|
||
i++;
|
||
}
|
||
|
||
if (i >= characters.length) {
|
||
word = characters.splice(0, i);
|
||
if (word.length) {
|
||
words.push(punycode.ucs2.encode(word));
|
||
}
|
||
}
|
||
}
|
||
return words;
|
||
}
|
||
|
||
function isWordBoundary(characterCode) {
|
||
return [
|
||
32, // <space>
|
||
13, // \r
|
||
10, // \n
|
||
9, // \t
|
||
45 // -
|
||
].indexOf(characterCode) !== -1;
|
||
}
|
||
|
||
function hasUnicode(string) {
|
||
return (/[^\u0000-\u00ff]/).test(string);
|
||
}
|
||
|
||
module.exports = NodeParser;
|
||
|
||
},{"./color":5,"./fontmetrics":9,"./log":15,"./nodecontainer":16,"./promise":18,"./pseudoelementcontainer":21,"./stackingcontext":24,"./textcontainer":28,"./utils":29,"punycode":3}],18:[function(require,module,exports){
|
||
module.exports = require('es6-promise').Promise;
|
||
|
||
},{"es6-promise":1}],19:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
var XHR = require('./xhr');
|
||
var utils = require('./utils');
|
||
var log = require('./log');
|
||
var createWindowClone = require('./clone');
|
||
var decode64 = utils.decode64;
|
||
|
||
function Proxy(src, proxyUrl, document) {
|
||
var supportsCORS = ('withCredentials' in new XMLHttpRequest());
|
||
if (!proxyUrl) {
|
||
return Promise.reject("No proxy configured");
|
||
}
|
||
var callback = createCallback(supportsCORS);
|
||
var url = createProxyUrl(proxyUrl, src, callback);
|
||
|
||
return supportsCORS ? XHR(url) : (jsonp(document, url, callback).then(function(response) {
|
||
return decode64(response.content);
|
||
}));
|
||
}
|
||
var proxyCount = 0;
|
||
|
||
function ProxyURL(src, proxyUrl, document) {
|
||
var supportsCORSImage = ('crossOrigin' in new Image());
|
||
var callback = createCallback(supportsCORSImage);
|
||
var url = createProxyUrl(proxyUrl, src, callback);
|
||
return (supportsCORSImage ? Promise.resolve(url) : jsonp(document, url, callback).then(function(response) {
|
||
return "data:" + response.type + ";base64," + response.content;
|
||
}));
|
||
}
|
||
|
||
function jsonp(document, url, callback) {
|
||
return new Promise(function(resolve, reject) {
|
||
var s = document.createElement("script");
|
||
var cleanup = function() {
|
||
delete window.html2canvas.proxy[callback];
|
||
document.body.removeChild(s);
|
||
};
|
||
window.html2canvas.proxy[callback] = function(response) {
|
||
cleanup();
|
||
resolve(response);
|
||
};
|
||
s.src = url;
|
||
s.onerror = function(e) {
|
||
cleanup();
|
||
reject(e);
|
||
};
|
||
document.body.appendChild(s);
|
||
});
|
||
}
|
||
|
||
function createCallback(useCORS) {
|
||
return !useCORS ? "html2canvas_" + Date.now() + "_" + (++proxyCount) + "_" + Math.round(Math.random() * 100000) : "";
|
||
}
|
||
|
||
function createProxyUrl(proxyUrl, src, callback) {
|
||
return proxyUrl + "?url=" + encodeURIComponent(src) + (callback.length ? "&callback=html2canvas.proxy." + callback : "");
|
||
}
|
||
|
||
function documentFromHTML(src) {
|
||
return function(html) {
|
||
var parser = new DOMParser(), doc;
|
||
try {
|
||
doc = parser.parseFromString(html, "text/html");
|
||
} catch(e) {
|
||
log("DOMParser not supported, falling back to createHTMLDocument");
|
||
doc = document.implementation.createHTMLDocument("");
|
||
try {
|
||
doc.open();
|
||
doc.write(html);
|
||
doc.close();
|
||
} catch(ee) {
|
||
log("createHTMLDocument write not supported, falling back to document.body.innerHTML");
|
||
doc.body.innerHTML = html; // ie9 doesnt support writing to documentElement
|
||
}
|
||
}
|
||
|
||
var b = doc.querySelector("base");
|
||
if (!b || !b.href.host) {
|
||
var base = doc.createElement("base");
|
||
base.href = src;
|
||
doc.head.insertBefore(base, doc.head.firstChild);
|
||
}
|
||
|
||
return doc;
|
||
};
|
||
}
|
||
|
||
function loadUrlDocument(src, proxy, document, width, height, options) {
|
||
return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
|
||
return createWindowClone(doc, document, width, height, options, 0, 0);
|
||
});
|
||
}
|
||
|
||
exports.Proxy = Proxy;
|
||
exports.ProxyURL = ProxyURL;
|
||
exports.loadUrlDocument = loadUrlDocument;
|
||
|
||
},{"./clone":4,"./log":15,"./promise":18,"./utils":29,"./xhr":31}],20:[function(require,module,exports){
|
||
var ProxyURL = require('./proxy').ProxyURL;
|
||
var Promise = require('./promise');
|
||
|
||
function ProxyImageContainer(src, proxy) {
|
||
var link = document.createElement("a");
|
||
link.href = src;
|
||
src = link.href;
|
||
this.src = src;
|
||
this.image = new Image();
|
||
var self = this;
|
||
this.promise = new Promise(function(resolve, reject) {
|
||
self.image.crossOrigin = "Anonymous";
|
||
self.image.onload = resolve;
|
||
self.image.onerror = reject;
|
||
|
||
new ProxyURL(src, proxy, document).then(function(url) {
|
||
self.image.src = url;
|
||
})['catch'](reject);
|
||
});
|
||
}
|
||
|
||
module.exports = ProxyImageContainer;
|
||
|
||
},{"./promise":18,"./proxy":19}],21:[function(require,module,exports){
|
||
var NodeContainer = require('./nodecontainer');
|
||
|
||
function PseudoElementContainer(node, parent, type) {
|
||
NodeContainer.call(this, node, parent);
|
||
this.isPseudoElement = true;
|
||
this.before = type === ":before";
|
||
}
|
||
|
||
PseudoElementContainer.prototype.cloneTo = function(stack) {
|
||
PseudoElementContainer.prototype.cloneTo.call(this, stack);
|
||
stack.isPseudoElement = true;
|
||
stack.before = this.before;
|
||
};
|
||
|
||
PseudoElementContainer.prototype = Object.create(NodeContainer.prototype);
|
||
|
||
PseudoElementContainer.prototype.appendToDOM = function() {
|
||
if (this.before) {
|
||
this.parent.node.insertBefore(this.node, this.parent.node.firstChild);
|
||
} else {
|
||
this.parent.node.appendChild(this.node);
|
||
}
|
||
this.parent.node.className += " " + this.getHideClass();
|
||
};
|
||
|
||
PseudoElementContainer.prototype.cleanDOM = function() {
|
||
this.node.parentNode.removeChild(this.node);
|
||
this.parent.node.className = this.parent.node.className.replace(this.getHideClass(), "");
|
||
};
|
||
|
||
PseudoElementContainer.prototype.getHideClass = function() {
|
||
return this["PSEUDO_HIDE_ELEMENT_CLASS_" + (this.before ? "BEFORE" : "AFTER")];
|
||
};
|
||
|
||
PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE = "___html2canvas___pseudoelement_before";
|
||
PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER = "___html2canvas___pseudoelement_after";
|
||
|
||
module.exports = PseudoElementContainer;
|
||
|
||
},{"./nodecontainer":16}],22:[function(require,module,exports){
|
||
var log = require('./log');
|
||
|
||
function Renderer(width, height, images, options, document) {
|
||
this.width = width;
|
||
this.height = height;
|
||
this.images = images;
|
||
this.options = options;
|
||
this.document = document;
|
||
}
|
||
|
||
Renderer.prototype.renderImage = function(container, bounds, borderData, imageContainer) {
|
||
var paddingLeft = container.cssInt('paddingLeft'),
|
||
paddingTop = container.cssInt('paddingTop'),
|
||
paddingRight = container.cssInt('paddingRight'),
|
||
paddingBottom = container.cssInt('paddingBottom'),
|
||
borders = borderData.borders;
|
||
|
||
var width = bounds.width - (borders[1].width + borders[3].width + paddingLeft + paddingRight);
|
||
var height = bounds.height - (borders[0].width + borders[2].width + paddingTop + paddingBottom);
|
||
this.drawImage(
|
||
imageContainer,
|
||
0,
|
||
0,
|
||
imageContainer.image.width || width,
|
||
imageContainer.image.height || height,
|
||
bounds.left + paddingLeft + borders[3].width,
|
||
bounds.top + paddingTop + borders[0].width,
|
||
width,
|
||
height
|
||
);
|
||
};
|
||
|
||
Renderer.prototype.renderBackground = function(container, bounds, borderData) {
|
||
if (bounds.height > 0 && bounds.width > 0) {
|
||
this.renderBackgroundColor(container, bounds);
|
||
this.renderBackgroundImage(container, bounds, borderData);
|
||
}
|
||
};
|
||
|
||
Renderer.prototype.renderBackgroundColor = function(container, bounds) {
|
||
var color = container.color("backgroundColor");
|
||
if (!color.isTransparent()) {
|
||
this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, color);
|
||
}
|
||
};
|
||
|
||
Renderer.prototype.renderBorders = function(borders) {
|
||
borders.forEach(this.renderBorder, this);
|
||
};
|
||
|
||
Renderer.prototype.renderBorder = function(data) {
|
||
if (!data.color.isTransparent() && data.args !== null) {
|
||
this.drawShape(data.args, data.color);
|
||
}
|
||
};
|
||
|
||
Renderer.prototype.renderBackgroundImage = function(container, bounds, borderData) {
|
||
var backgroundImages = container.parseBackgroundImages();
|
||
backgroundImages.reverse().forEach(function(backgroundImage, index, arr) {
|
||
switch(backgroundImage.method) {
|
||
case "url":
|
||
var image = this.images.get(backgroundImage.args[0]);
|
||
if (image) {
|
||
this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1), borderData);
|
||
} else {
|
||
log("Error loading background-image", backgroundImage.args[0]);
|
||
}
|
||
break;
|
||
case "linear-gradient":
|
||
case "gradient":
|
||
var gradientImage = this.images.get(backgroundImage.value);
|
||
if (gradientImage) {
|
||
this.renderBackgroundGradient(gradientImage, bounds, borderData);
|
||
} else {
|
||
log("Error loading background-image", backgroundImage.args[0]);
|
||
}
|
||
break;
|
||
case "none":
|
||
break;
|
||
default:
|
||
log("Unknown background-image type", backgroundImage.args[0]);
|
||
}
|
||
}, this);
|
||
};
|
||
|
||
Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index, borderData) {
|
||
var size = container.parseBackgroundSize(bounds, imageContainer.image, index);
|
||
var position = container.parseBackgroundPosition(bounds, imageContainer.image, index, size);
|
||
var repeat = container.parseBackgroundRepeat(index);
|
||
switch (repeat) {
|
||
case "repeat-x":
|
||
case "repeat no-repeat":
|
||
this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + borderData[3], bounds.top + position.top + borderData[0], 99999, size.height, borderData);
|
||
break;
|
||
case "repeat-y":
|
||
case "no-repeat repeat":
|
||
this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + borderData[0], size.width, 99999, borderData);
|
||
break;
|
||
case "no-repeat":
|
||
this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + position.top + borderData[0], size.width, size.height, borderData);
|
||
break;
|
||
default:
|
||
this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left}, borderData[3], borderData[0]);
|
||
break;
|
||
}
|
||
};
|
||
|
||
module.exports = Renderer;
|
||
|
||
},{"./log":15}],23:[function(require,module,exports){
|
||
var Renderer = require('../renderer');
|
||
var LinearGradientContainer = require('../lineargradientcontainer');
|
||
var log = require('../log');
|
||
|
||
function CanvasRenderer(width, height) {
|
||
Renderer.apply(this, arguments);
|
||
this.canvas = this.options.canvas || this.document.createElement("canvas");
|
||
if (!this.options.canvas) {
|
||
this.canvas.width = width;
|
||
this.canvas.height = height;
|
||
}
|
||
this.ctx = this.canvas.getContext("2d");
|
||
this.taintCtx = this.document.createElement("canvas").getContext("2d");
|
||
this.ctx.textBaseline = "bottom";
|
||
this.variables = {};
|
||
log("Initialized CanvasRenderer with size", width, "x", height);
|
||
}
|
||
|
||
CanvasRenderer.prototype = Object.create(Renderer.prototype);
|
||
|
||
CanvasRenderer.prototype.setFillStyle = function(fillStyle) {
|
||
this.ctx.fillStyle = typeof(fillStyle) === "object" && !!fillStyle.isColor ? fillStyle.toString() : fillStyle;
|
||
return this.ctx;
|
||
};
|
||
|
||
CanvasRenderer.prototype.rectangle = function(left, top, width, height, color) {
|
||
this.setFillStyle(color).fillRect(left, top, width, height);
|
||
};
|
||
|
||
CanvasRenderer.prototype.circle = function(left, top, size, color) {
|
||
this.setFillStyle(color);
|
||
this.ctx.beginPath();
|
||
this.ctx.arc(left + size / 2, top + size / 2, size / 2, 0, Math.PI*2, true);
|
||
this.ctx.closePath();
|
||
this.ctx.fill();
|
||
};
|
||
|
||
CanvasRenderer.prototype.circleStroke = function(left, top, size, color, stroke, strokeColor) {
|
||
this.circle(left, top, size, color);
|
||
this.ctx.strokeStyle = strokeColor.toString();
|
||
this.ctx.stroke();
|
||
};
|
||
|
||
CanvasRenderer.prototype.drawShape = function(shape, color) {
|
||
this.shape(shape);
|
||
this.setFillStyle(color).fill();
|
||
};
|
||
|
||
CanvasRenderer.prototype.taints = function(imageContainer) {
|
||
if (imageContainer.tainted === null) {
|
||
this.taintCtx.drawImage(imageContainer.image, 0, 0);
|
||
try {
|
||
this.taintCtx.getImageData(0, 0, 1, 1);
|
||
imageContainer.tainted = false;
|
||
} catch(e) {
|
||
this.taintCtx = document.createElement("canvas").getContext("2d");
|
||
imageContainer.tainted = true;
|
||
}
|
||
}
|
||
|
||
return imageContainer.tainted;
|
||
};
|
||
|
||
CanvasRenderer.prototype.drawImage = function(imageContainer, sx, sy, sw, sh, dx, dy, dw, dh) {
|
||
if (!this.taints(imageContainer) || this.options.allowTaint) {
|
||
this.ctx.drawImage(imageContainer.image, sx, sy, sw, sh, dx, dy, dw, dh);
|
||
}
|
||
};
|
||
|
||
CanvasRenderer.prototype.clip = function(shapes, callback, context) {
|
||
this.ctx.save();
|
||
shapes.filter(hasEntries).forEach(function(shape) {
|
||
this.shape(shape).clip();
|
||
}, this);
|
||
callback.call(context);
|
||
this.ctx.restore();
|
||
};
|
||
|
||
CanvasRenderer.prototype.shape = function(shape) {
|
||
this.ctx.beginPath();
|
||
shape.forEach(function(point, index) {
|
||
if (point[0] === "rect") {
|
||
this.ctx.rect.apply(this.ctx, point.slice(1));
|
||
} else {
|
||
this.ctx[(index === 0) ? "moveTo" : point[0] + "To" ].apply(this.ctx, point.slice(1));
|
||
}
|
||
}, this);
|
||
this.ctx.closePath();
|
||
return this.ctx;
|
||
};
|
||
|
||
CanvasRenderer.prototype.font = function(color, style, variant, weight, size, family) {
|
||
this.setFillStyle(color).font = [style, variant, weight, size, family].join(" ").split(",")[0];
|
||
};
|
||
|
||
CanvasRenderer.prototype.fontShadow = function(color, offsetX, offsetY, blur) {
|
||
this.setVariable("shadowColor", color.toString())
|
||
.setVariable("shadowOffsetY", offsetX)
|
||
.setVariable("shadowOffsetX", offsetY)
|
||
.setVariable("shadowBlur", blur);
|
||
};
|
||
|
||
CanvasRenderer.prototype.clearShadow = function() {
|
||
this.setVariable("shadowColor", "rgba(0,0,0,0)");
|
||
};
|
||
|
||
CanvasRenderer.prototype.setOpacity = function(opacity) {
|
||
this.ctx.globalAlpha = opacity;
|
||
};
|
||
|
||
CanvasRenderer.prototype.setTransform = function(transform) {
|
||
this.ctx.translate(transform.origin[0], transform.origin[1]);
|
||
this.ctx.transform.apply(this.ctx, transform.matrix);
|
||
this.ctx.translate(-transform.origin[0], -transform.origin[1]);
|
||
};
|
||
|
||
CanvasRenderer.prototype.setVariable = function(property, value) {
|
||
if (this.variables[property] !== value) {
|
||
this.variables[property] = this.ctx[property] = value;
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
CanvasRenderer.prototype.text = function(text, left, bottom) {
|
||
this.ctx.fillText(text, left, bottom);
|
||
};
|
||
|
||
CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height, borderData) {
|
||
var shape = [
|
||
["line", Math.round(left), Math.round(top)],
|
||
["line", Math.round(left + width), Math.round(top)],
|
||
["line", Math.round(left + width), Math.round(height + top)],
|
||
["line", Math.round(left), Math.round(height + top)]
|
||
];
|
||
this.clip([shape], function() {
|
||
this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds, borderData[3], borderData[0]);
|
||
}, this);
|
||
};
|
||
|
||
CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds, borderLeft, borderTop) {
|
||
var offsetX = Math.round(bounds.left + backgroundPosition.left + borderLeft), offsetY = Math.round(bounds.top + backgroundPosition.top + borderTop);
|
||
this.setFillStyle(this.ctx.createPattern(this.resizeImage(imageContainer, size), "repeat"));
|
||
this.ctx.translate(offsetX, offsetY);
|
||
this.ctx.fill();
|
||
this.ctx.translate(-offsetX, -offsetY);
|
||
};
|
||
|
||
CanvasRenderer.prototype.renderBackgroundGradient = function(gradientImage, bounds) {
|
||
if (gradientImage instanceof LinearGradientContainer) {
|
||
var gradient = this.ctx.createLinearGradient(
|
||
bounds.left + bounds.width * gradientImage.x0,
|
||
bounds.top + bounds.height * gradientImage.y0,
|
||
bounds.left + bounds.width * gradientImage.x1,
|
||
bounds.top + bounds.height * gradientImage.y1);
|
||
gradientImage.colorStops.forEach(function(colorStop) {
|
||
gradient.addColorStop(colorStop.stop, colorStop.color.toString());
|
||
});
|
||
this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, gradient);
|
||
}
|
||
};
|
||
|
||
CanvasRenderer.prototype.resizeImage = function(imageContainer, size) {
|
||
var image = imageContainer.image;
|
||
if(image.width === size.width && image.height === size.height) {
|
||
return image;
|
||
}
|
||
|
||
var ctx, canvas = document.createElement('canvas');
|
||
canvas.width = size.width;
|
||
canvas.height = size.height;
|
||
ctx = canvas.getContext("2d");
|
||
ctx.drawImage(image, 0, 0, image.width, image.height, 0, 0, size.width, size.height );
|
||
return canvas;
|
||
};
|
||
|
||
function hasEntries(array) {
|
||
return array.length > 0;
|
||
}
|
||
|
||
module.exports = CanvasRenderer;
|
||
|
||
},{"../lineargradientcontainer":14,"../log":15,"../renderer":22}],24:[function(require,module,exports){
|
||
var NodeContainer = require('./nodecontainer');
|
||
|
||
function StackingContext(hasOwnStacking, opacity, element, parent) {
|
||
NodeContainer.call(this, element, parent);
|
||
this.ownStacking = hasOwnStacking;
|
||
this.contexts = [];
|
||
this.children = [];
|
||
this.opacity = (this.parent ? this.parent.stack.opacity : 1) * opacity;
|
||
}
|
||
|
||
StackingContext.prototype = Object.create(NodeContainer.prototype);
|
||
|
||
StackingContext.prototype.getParentStack = function(context) {
|
||
var parentStack = (this.parent) ? this.parent.stack : null;
|
||
return parentStack ? (parentStack.ownStacking ? parentStack : parentStack.getParentStack(context)) : context.stack;
|
||
};
|
||
|
||
module.exports = StackingContext;
|
||
|
||
},{"./nodecontainer":16}],25:[function(require,module,exports){
|
||
function Support(document) {
|
||
this.rangeBounds = this.testRangeBounds(document);
|
||
this.cors = this.testCORS();
|
||
this.svg = this.testSVG();
|
||
}
|
||
|
||
Support.prototype.testRangeBounds = function(document) {
|
||
var range, testElement, rangeBounds, rangeHeight, support = false;
|
||
|
||
if (document.createRange) {
|
||
range = document.createRange();
|
||
if (range.getBoundingClientRect) {
|
||
testElement = document.createElement('boundtest');
|
||
testElement.style.height = "123px";
|
||
testElement.style.display = "block";
|
||
document.body.appendChild(testElement);
|
||
|
||
range.selectNode(testElement);
|
||
rangeBounds = range.getBoundingClientRect();
|
||
rangeHeight = rangeBounds.height;
|
||
|
||
if (rangeHeight === 123) {
|
||
support = true;
|
||
}
|
||
document.body.removeChild(testElement);
|
||
}
|
||
}
|
||
|
||
return support;
|
||
};
|
||
|
||
Support.prototype.testCORS = function() {
|
||
return typeof((new Image()).crossOrigin) !== "undefined";
|
||
};
|
||
|
||
Support.prototype.testSVG = function() {
|
||
var img = new Image();
|
||
var canvas = document.createElement("canvas");
|
||
var ctx = canvas.getContext("2d");
|
||
img.src = "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>";
|
||
|
||
try {
|
||
ctx.drawImage(img, 0, 0);
|
||
canvas.toDataURL();
|
||
} catch(e) {
|
||
return false;
|
||
}
|
||
return true;
|
||
};
|
||
|
||
module.exports = Support;
|
||
|
||
},{}],26:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
var XHR = require('./xhr');
|
||
var decode64 = require('./utils').decode64;
|
||
|
||
function SVGContainer(src) {
|
||
this.src = src;
|
||
this.image = null;
|
||
var self = this;
|
||
|
||
this.promise = this.hasFabric().then(function() {
|
||
return (self.isInline(src) ? Promise.resolve(self.inlineFormatting(src)) : XHR(src));
|
||
}).then(function(svg) {
|
||
return new Promise(function(resolve) {
|
||
window.html2canvas.svg.fabric.loadSVGFromString(svg, self.createCanvas.call(self, resolve));
|
||
});
|
||
});
|
||
}
|
||
|
||
SVGContainer.prototype.hasFabric = function() {
|
||
return !window.html2canvas.svg || !window.html2canvas.svg.fabric ? Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg")) : Promise.resolve();
|
||
};
|
||
|
||
SVGContainer.prototype.inlineFormatting = function(src) {
|
||
return (/^data:image\/svg\+xml;base64,/.test(src)) ? this.decode64(this.removeContentType(src)) : this.removeContentType(src);
|
||
};
|
||
|
||
SVGContainer.prototype.removeContentType = function(src) {
|
||
return src.replace(/^data:image\/svg\+xml(;base64)?,/,'');
|
||
};
|
||
|
||
SVGContainer.prototype.isInline = function(src) {
|
||
return (/^data:image\/svg\+xml/i.test(src));
|
||
};
|
||
|
||
SVGContainer.prototype.createCanvas = function(resolve) {
|
||
var self = this;
|
||
return function (objects, options) {
|
||
var canvas = new window.html2canvas.svg.fabric.StaticCanvas('c');
|
||
self.image = canvas.lowerCanvasEl;
|
||
canvas
|
||
.setWidth(options.width)
|
||
.setHeight(options.height)
|
||
.add(window.html2canvas.svg.fabric.util.groupSVGElements(objects, options))
|
||
.renderAll();
|
||
resolve(canvas.lowerCanvasEl);
|
||
};
|
||
};
|
||
|
||
SVGContainer.prototype.decode64 = function(str) {
|
||
return (typeof(window.atob) === "function") ? window.atob(str) : decode64(str);
|
||
};
|
||
|
||
module.exports = SVGContainer;
|
||
|
||
},{"./promise":18,"./utils":29,"./xhr":31}],27:[function(require,module,exports){
|
||
var SVGContainer = require('./svgcontainer');
|
||
var Promise = require('./promise');
|
||
|
||
function SVGNodeContainer(node, _native) {
|
||
this.src = node;
|
||
this.image = null;
|
||
var self = this;
|
||
|
||
this.promise = _native ? new Promise(function(resolve, reject) {
|
||
self.image = new Image();
|
||
self.image.onload = resolve;
|
||
self.image.onerror = reject;
|
||
self.image.src = "data:image/svg+xml," + (new XMLSerializer()).serializeToString(node);
|
||
if (self.image.complete === true) {
|
||
resolve(self.image);
|
||
}
|
||
}) : this.hasFabric().then(function() {
|
||
return new Promise(function(resolve) {
|
||
window.html2canvas.svg.fabric.parseSVGDocument(node, self.createCanvas.call(self, resolve));
|
||
});
|
||
});
|
||
}
|
||
|
||
SVGNodeContainer.prototype = Object.create(SVGContainer.prototype);
|
||
|
||
module.exports = SVGNodeContainer;
|
||
|
||
},{"./promise":18,"./svgcontainer":26}],28:[function(require,module,exports){
|
||
var NodeContainer = require('./nodecontainer');
|
||
|
||
function TextContainer(node, parent) {
|
||
NodeContainer.call(this, node, parent);
|
||
}
|
||
|
||
TextContainer.prototype = Object.create(NodeContainer.prototype);
|
||
|
||
TextContainer.prototype.applyTextTransform = function() {
|
||
this.node.data = this.transform(this.parent.css("textTransform"));
|
||
};
|
||
|
||
TextContainer.prototype.transform = function(transform) {
|
||
var text = this.node.data;
|
||
switch(transform){
|
||
case "lowercase":
|
||
return text.toLowerCase();
|
||
case "capitalize":
|
||
return text.replace(/(^|\s|:|-|\(|\))([a-z])/g, capitalize);
|
||
case "uppercase":
|
||
return text.toUpperCase();
|
||
default:
|
||
return text;
|
||
}
|
||
};
|
||
|
||
function capitalize(m, p1, p2) {
|
||
if (m.length > 0) {
|
||
return p1 + p2.toUpperCase();
|
||
}
|
||
}
|
||
|
||
module.exports = TextContainer;
|
||
|
||
},{"./nodecontainer":16}],29:[function(require,module,exports){
|
||
exports.smallImage = function smallImage() {
|
||
return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
|
||
};
|
||
|
||
exports.bind = function(callback, context) {
|
||
return function() {
|
||
return callback.apply(context, arguments);
|
||
};
|
||
};
|
||
|
||
/*
|
||
* base64-arraybuffer
|
||
* https://github.com/niklasvh/base64-arraybuffer
|
||
*
|
||
* Copyright (c) 2012 Niklas von Hertzen
|
||
* Licensed under the MIT license.
|
||
*/
|
||
|
||
exports.decode64 = function(base64) {
|
||
var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||
var len = base64.length, i, encoded1, encoded2, encoded3, encoded4, byte1, byte2, byte3;
|
||
|
||
var output = "";
|
||
|
||
for (i = 0; i < len; i+=4) {
|
||
encoded1 = chars.indexOf(base64[i]);
|
||
encoded2 = chars.indexOf(base64[i+1]);
|
||
encoded3 = chars.indexOf(base64[i+2]);
|
||
encoded4 = chars.indexOf(base64[i+3]);
|
||
|
||
byte1 = (encoded1 << 2) | (encoded2 >> 4);
|
||
byte2 = ((encoded2 & 15) << 4) | (encoded3 >> 2);
|
||
byte3 = ((encoded3 & 3) << 6) | encoded4;
|
||
if (encoded3 === 64) {
|
||
output += String.fromCharCode(byte1);
|
||
} else if (encoded4 === 64 || encoded4 === -1) {
|
||
output += String.fromCharCode(byte1, byte2);
|
||
} else{
|
||
output += String.fromCharCode(byte1, byte2, byte3);
|
||
}
|
||
}
|
||
|
||
return output;
|
||
};
|
||
|
||
exports.getBounds = function(node) {
|
||
if (node.getBoundingClientRect) {
|
||
var clientRect = node.getBoundingClientRect();
|
||
var width = node.offsetWidth == null ? clientRect.width : node.offsetWidth;
|
||
return {
|
||
top: clientRect.top,
|
||
bottom: clientRect.bottom || (clientRect.top + clientRect.height),
|
||
right: clientRect.left + width,
|
||
left: clientRect.left,
|
||
width: width,
|
||
height: node.offsetHeight == null ? clientRect.height : node.offsetHeight
|
||
};
|
||
}
|
||
return {};
|
||
};
|
||
|
||
exports.offsetBounds = function(node) {
|
||
var parent = node.offsetParent ? exports.offsetBounds(node.offsetParent) : {top: 0, left: 0};
|
||
|
||
return {
|
||
top: node.offsetTop + parent.top,
|
||
bottom: node.offsetTop + node.offsetHeight + parent.top,
|
||
right: node.offsetLeft + parent.left + node.offsetWidth,
|
||
left: node.offsetLeft + parent.left,
|
||
width: node.offsetWidth,
|
||
height: node.offsetHeight
|
||
};
|
||
};
|
||
|
||
exports.parseBackgrounds = function(backgroundImage) {
|
||
var whitespace = ' \r\n\t',
|
||
method, definition, prefix, prefix_i, block, results = [],
|
||
mode = 0, numParen = 0, quote, args;
|
||
var appendResult = function() {
|
||
if(method) {
|
||
if (definition.substr(0, 1) === '"') {
|
||
definition = definition.substr(1, definition.length - 2);
|
||
}
|
||
if (definition) {
|
||
args.push(definition);
|
||
}
|
||
if (method.substr(0, 1) === '-' && (prefix_i = method.indexOf('-', 1 ) + 1) > 0) {
|
||
prefix = method.substr(0, prefix_i);
|
||
method = method.substr(prefix_i);
|
||
}
|
||
results.push({
|
||
prefix: prefix,
|
||
method: method.toLowerCase(),
|
||
value: block,
|
||
args: args,
|
||
image: null
|
||
});
|
||
}
|
||
args = [];
|
||
method = prefix = definition = block = '';
|
||
};
|
||
args = [];
|
||
method = prefix = definition = block = '';
|
||
backgroundImage.split("").forEach(function(c) {
|
||
if (mode === 0 && whitespace.indexOf(c) > -1) {
|
||
return;
|
||
}
|
||
switch(c) {
|
||
case '"':
|
||
if(!quote) {
|
||
quote = c;
|
||
} else if(quote === c) {
|
||
quote = null;
|
||
}
|
||
break;
|
||
case '(':
|
||
if(quote) {
|
||
break;
|
||
} else if(mode === 0) {
|
||
mode = 1;
|
||
block += c;
|
||
return;
|
||
} else {
|
||
numParen++;
|
||
}
|
||
break;
|
||
case ')':
|
||
if (quote) {
|
||
break;
|
||
} else if(mode === 1) {
|
||
if(numParen === 0) {
|
||
mode = 0;
|
||
block += c;
|
||
appendResult();
|
||
return;
|
||
} else {
|
||
numParen--;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case ',':
|
||
if (quote) {
|
||
break;
|
||
} else if(mode === 0) {
|
||
appendResult();
|
||
return;
|
||
} else if (mode === 1) {
|
||
if (numParen === 0 && !method.match(/^url$/i)) {
|
||
args.push(definition);
|
||
definition = '';
|
||
block += c;
|
||
return;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
block += c;
|
||
if (mode === 0) {
|
||
method += c;
|
||
} else {
|
||
definition += c;
|
||
}
|
||
});
|
||
|
||
appendResult();
|
||
return results;
|
||
};
|
||
|
||
},{}],30:[function(require,module,exports){
|
||
var GradientContainer = require('./gradientcontainer');
|
||
|
||
function WebkitGradientContainer(imageData) {
|
||
GradientContainer.apply(this, arguments);
|
||
this.type = (imageData.args[0] === "linear") ? this.TYPES.LINEAR : this.TYPES.RADIAL;
|
||
}
|
||
|
||
WebkitGradientContainer.prototype = Object.create(GradientContainer.prototype);
|
||
|
||
module.exports = WebkitGradientContainer;
|
||
|
||
},{"./gradientcontainer":11}],31:[function(require,module,exports){
|
||
var Promise = require('./promise');
|
||
|
||
function XHR(url) {
|
||
return new Promise(function(resolve, reject) {
|
||
var xhr = new XMLHttpRequest();
|
||
xhr.open('GET', url);
|
||
|
||
xhr.onload = function() {
|
||
if (xhr.status === 200) {
|
||
resolve(xhr.responseText);
|
||
} else {
|
||
reject(new Error(xhr.statusText));
|
||
}
|
||
};
|
||
|
||
xhr.onerror = function() {
|
||
reject(new Error("Network Error"));
|
||
};
|
||
|
||
xhr.send();
|
||
});
|
||
}
|
||
|
||
module.exports = XHR;
|
||
|
||
},{"./promise":18}]},{},[6])(6)
|
||
}); |